If this is how you've presented the question, Its a bit hard to answer it when one hasn't read these books. It'd be best if you'd put both books into a summary for us to go based off of, at most.
D.) exposition. The exposition introduces the characters, setting, plot, prior events, etc.
Answer:
Deletion mutation, D on edge 2020
Explanation:
Many different types of mutations can occur within the body. Tay-Sachs disease is a deadly disorder that is caused by a missing codon in the gene coding for production of the hex A enzyme in the body. [ One type of mutation responsible for causing Tay-Sachs disease is a DELETION mutation.
Answer:
4. Should be studying
Explanation:
The predicate is the part of a sentence (or clause) that contains a verb, stating what the subject is doing, or describes the subject.
When we have a main verb and an auxiliary verb accompanying it, both of them together form the predicate. In the given sentence, we have a construction with a main verb<em> to study </em>and an auxiliary verb <em>should:</em> <em>should be studying</em>. If you chose just<em> studying</em> or <em>should be</em> as the predicate, that would be incorrect as those two options are not the complete predicate.