American scientist Benjamin Franklin invented the glass harmonica, also known as the Franklin harmonica, in the early 1760s. It is a mechanical version of the much simpler musical glasses that were popular at that time. These were a set of glass bowls of different sizes that were arranged from smallest to largest to produce distinct pitches. The bowls were fine-tuned by filling them partially with water. In the Franklin model, shallow glass basins are attached to a horizontal spindle that is revolved by a crank attached to a pedal. The spindle is placed in a trough of water so that the glasses are kept wet. The shimmering, bell-like sound is produced by touching the fingers to the wet edges. This instrument was popular in the late 18th and early 19th centuries. What is the meaning of the word pitches as it is used in this passage?
A.
baseball tosses
B.
frequencies of sound waves reaching the ear (musical)
C.
the distance between adjacent threads on a screw

Read the excerpt from the war of the worlds, which includes a description of setting shortly after the martians' first deadly attack.the undulating common seemed now dark almost to blackness, except where its roadways lay grey and pale under the deep blue sky of the early night. it was dark, and suddenly void of men. overhead the stars were mustering, and in the west the sky was still a pale, bright, almost greenish blue. the tops of the pine trees and the roofs of horsell came out sharp and black against the western afterglow. the martians and their appliances were altogether invisible, save for that thin mast upon which their restless mirror wobbled. patches of bush and isolated trees here and there smoked and glowed still, and the houses towards woking station were sending up spires of flame into the stillness of the evening air.what options accurately explain how the narrator's feelings are reflected in the setting? (select all that apply.)the war of the worldsthe narrator is comforted by the oncoming evening, as reflected in the setting details. for example, he says the martians are invisible.the narrator is distressed by the deceptive quiet of the evening, as reflected in the setting details. for example, he still sees smoke from the widespread destruction.the setting details to reveal the narrator's feelings of both relief and apprehension. for example, although the martians are not seen any longer, the remnants of the attack are still quite visible, and it's not clear whether the danger is over.the setting details reflect the narrator's feelings of both fascination and relief. for example, although one of the martians' odd tools is still visible, the creatures themselves no longer pose a threat.