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

He had just finished eating his breakfast. Then he fell down.

A. Hardly did he finished eating his breakfast when he fell down.

B. Hardly he had finished eating his breakfast when he fell down.

C. Hardly had he finished eating his breakfast when he fell down.

D. Hardly have he finished eating his breakfast when he fell down.