Select the option that expresses the given sentence in direct speech.
Madam Hooch asked the students what they were waiting for.

A

Madam Hooch told the students, “What they were waiting for?”

B

The students said to Madam Hooch, “What are we waiting for?”

C

Madam Hooch said to the students, “What you are waiting for?”

D

Madam Hooch said to the students, “What are you waiting for?”