Which of the phrases (A), (B), (C) and (D) given below each sentence should replace the phrase printed in bold in the sentence to make it grammatically correct? If the sentence is correct as it is given and no correction is required, mark (E) as the answer.
Since the car had broke down, we had to take a bus.

Options

A. To break down
B. Was broken down
C. Broke down
D. Break down

Answer

C