“before this i was not unacquainted with the more obvious laws of electricity” what does this line explain about the character?

answer; i believe that the   correct answer is (d)the use of descriptive words that bring your reader into the story, not using literal words for check luck

answer is b,

"the tracer looks harmless in flight, but the pilot’s bitten lips and white knuckles suggest how dangerous it can be."

it was correct.