Choose the correct reported form of the sentence:
The teacher said, "the exam will begin at 10 a.m."
AThe teacher said that the exam would begin at 10 a.m.
BThe teacher said that the exam will begin at 10 a.m.
CThe teacher said that the exam has begun at 10 a.m.
DThe teacher said that the exam begins at 10 a.m.
