The subject of the sentence, 'The cost (of eggs)" is singular, so we need a verb in singular too. the only such verb is <u>a. is</u>, so that's the correct answer.
It kinda easy if I was u I would study for it the questions can be somewhat confusing.
Answer:
Your right on this one
Explanation:
Leaving is an action (so Physical)
I believe the answer is A) what angers the speaker in this poem is the prospect of being chained and fenced.