The correct answer is B.
From the context, one can infer in this poem the world "cull" means "to pluck".
The speaker tells that, during spring, she cannot pluck the herbs. However, when autumn comes, she can rip the red leaves from the trees and give way for green new ones to blossom.
C. In respone to problems
This is a quote from John Green's "A Fault in our Stars".
It's basically an exaggeration depicting the emotion of a reader who has just read a book that made a very strong impression on the person to levels that he wants everyone to read this book so as to feel the emotions that swell within John. This want is depicted by the phrase "weird evangelical zeal". The reader acknowledges that such a zeal is weird. Few things can make a person want to scream a message to the whole world which is the emotion the above exaggeration is describing. John simply desires for everyone to feel what he felt, but he knows it's most likely not possible to carry another person on the ride of intrigue he experienced, hence admitting that it is weird. There's an irony there because he knows it would be difficult for another to convey theirs to him too.
The exaggeration continues when the John declares that the world stands a chance of fixing itself only after it has read the book. Here John is simply implying that reading this book would be helpful to every reader in every circumstance.
"<span>b. had been a most unpleasant coincidence that the power outage had come when we had guests staying over; the entire house was full" uses a semicolon correctly because there is a long pause. </span>
One of the richest men in the world is the appositive.
It has a comma that separates it from the rest of the sentence and the sentence makes sense without it as "Bill Gates started Microsoft."
If Bill Gates had a comma after it, it would be the apositive and the sentence would be "One of the richest men in the world started Microsoft," but since there is only one comma the appositve is "One of the richest men in the world."
