Read this excerpt from "Mad Cow, Furious Farmer." A prion is a piece of protein very similar, but not identical, to other proteins in the brain. It is a little bit squishy and maybe a little sticky. If it manages to burrow into a corner of the brain, it will slowly bend and break all the proteins nearby, carving sponge-like holes all over the brain. These holes are what give the disease its official name: bovine spongiform encephalopathy, or BSE. "Bovine" means having to do with a cow, "spongiform" means having sponge-like structures, and “encephalopathy” means a disease of the brain. It takes a long time for the cow to show symptoms of the disease, but by the time the cow starts staggering around and acting strangely, the brain is a mess and the poor animal is nearly dead. That strange behavior is what gives the diseases its common name of "mad cow disease."

What is one example of the author keeping a lively tone even while discussing a disease?

The author uses technical language when defining the name "bovine spongiform encephalopathy."
The author explains how "[i]t takes a long time for the cow to show symptoms" after it is infected by the disease.
The author connects prions to humans by saying it is "very similar to other proteins in the brain."
The author humanizes the prion with playful language by saying "[i]f it manages to burrow into a corner."

Excerpt from 100% - the story of a patriot upton sinclair 10 so peter walked along, with his belt drawn tight, and his restless blue eyes wandering here and there, looking for a place to get a meal. there were jobs to be had, but they were hard jobs, and peter wanted an easy one. there are people in this world who live by their muscles, and others who live by their wits; peter belonged to the latter class; and had missed many a meal rather than descend in the social scale. 11 peter looked into the faces of everyone he passed, searching for a possible opening. some returned his glance, but never for more than a second, for they saw an insignificant looking man, undersized, undernourished, and with one shoulder higher than the other, a weak chin and mouth, crooked teeth, and a brown moustache too feeble to hold itself up at the corners. peters' straw hat had many straws missing, his second-hand brown suit was become third-hand, and his shoes were turning over at the sides. in a city where everybody was "hustling," everybody, as they phrased it, "on the make," why should anyone take a second glance at peter gudge? why should anyone care about the restless soul hidden inside him, or dream that peter was, in his own obscure way, a sort of genius? no one did care; no one did dream. 12 it was about two o'clock of an afternoon in july, and the sun beat down upon the streets of american city. there were crowds upon the streets, and peter noticed that everywhere were flags and bunting. once or twice he heard the strains of distant music, and wondered what was "up." peter had not been reading the newspapers; all his attention bad been taken up by the quarrels of the smithers faction and the lunk faction in the first apostolic church, otherwise known as the holy rollers, and great events that had been happening in the world outside were of no concern to him. peter knew vaguely that on the other side of the world half a dozen mighty nations were locked together in a grip of death; the whole earth was shaken with their struggles, and peter had felt a bit of the trembling now and then. but peter did not know that his own country had anything to do with this european quarrel, and did not know that certain great interests throughout the country had set themselves to rouse the public to action. based on the author's characterization of peter in paragraphs 10, 11, and 12, which word best describes him? a) industrious b) loyal c) patriotic d) poor