It's a clause, your welcome; a clause is a sentence/group of words that offers a viable subject and verb, phrases on the other hand DO NOT.
Answer: b. Pick the order in which people are gleaned.
Explanation:
This is based on the book ''Scythe'' by Neal Shusterman and tells the story of a world where humans are now immortal. In this world exists Scythes who can kill humans permanently in order to control population growth. When Scythes kill people they call it gleaning.
In chapter 6, four Scythes enter a plane and tell everyone that they are to be gleaned. A businessman attempts to jump off the plane but is told that anyone who does so will have their family wiped out. When the businessman comes to sit back down the lead Scythe, Goddard, asks him to pick the order in which people were to be gleaned.
I believe the answer is Metaphor
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Tell the reader what the writer will discuss in the essay -D)