"How many students are there in your school?" My f...

Câu hỏi: "How many students are there in your school?" My father asked me. 

A. My father asked me how many students are there in your school.

B. My father asked me how many students there were in our school.

C. My father asked me there were how many students in our school.

D. My father asked me how many students there are in our school.