Why are tariffs considered protective?
A. Because they prevent foreign competitors from underselling
domestic producers
B. Because they are collected by the federal government
C. Because they discourage travel to foreign countries
D. Because they are progressive taxes

We we ask what a text means, we are inquiring, at least in part, about its a general idea or insight conveyed by the word in its entirety.

Danilo has been working for metropolitan taxi for three months. he expected that his job would be to drive around the city, pick up fares, and drop them off at their desired locations, but in his first few days on the job he realized that the job entails much more. he must keep his taxi cab clean and neat, and some days he will be stationed at the shop and go to people's houses to pick them up and bring them to the local airport. within a few months, he has learned that taxi drivers often express frustration with the people they call "civilians"—that is, non–taxi drivers, whose driving skills they complain about incessantly. in his first few months on the job, describes what danilo is undergoing.

Radiation was first detected by a ?