Mark the letter A, B, C, or D...

Câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each of sentences in the following questions.

A. The song which she is singing it says about the love of two young students.

B. The song she is singing says about the love of two young students.

C. The song says about the love of two young students that she is singing.

D. The song says about the love of two young students which she is singing.