Which meaning of struggle is used in the passage?

I think it is the third option, "Try to understand." or the first option, "Carry On"

Explanation: Because there, it shows certain details pointing out the real meaning of struggle, like, "struggle with one of these obstacles" so It's either try to understand or carry on.

the correct answer is d. a discussion of specific uses of alliteration

.

when you are critiquing or evaluating a poem, you will mostly pay attention to the theme, as well as figures of speech and rhythm. alliteration is a figure of speech where consonants are repeated in neighboring words - and it is important for analysis of sound and rhythm, which is why it might appear in the evaluation of that poem.

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.