Answer:
D. This is a complex sentence.
Explanation:
A complex sentence has multiple clauses. A clause has a subject and a verb. If you look back at the sentence, it does have multiple subjects and verbs, which means that it has multiple clauses, which means that it's a complex sentence.
When anything solid turns into a gas without first becoming liquid, that's sublimation<span>.</span>
The answer is "Mrs. Barrymore's brother."
