Answer:
The answer is A.
Step-by-step explanation:
Sentence has as many clauses as it has predicates.
A. Predicates are get to, (a)re not allowed to sleep. So this sentence has two clauses.
B. Predicate is use, so there is only one clause.
C. Predicate is will receive, so there is only one clause.
D. Predicates are will major and will minor, so there are two clauses.
Independent clauses are the ones which can stand alone and pass on the meaning on their own.
Dependent clauses serve to more precisely determine the meaning of the independent clause.
Answers B and C have only one clause and since it can stand alone, it is an independent clause, so we do not have any dependent clause.
Answer D has two clauses, but they are both independent. (you can say I will major in chemistry and I will minor in Theater arts separately)
Finally answer A has two clauses, the first one is dependent ( Until we get to Brooklyn), the second one is independent (we`re not allowed to sleep)