Select the option that expresses the given sentence in active voice.
Three novels and two story books had been written by him before 2020.

A

He has been writing three novels and two story books before 2020.

B

He had been writing three novels and two story books before 2020.

C

He had written three novels and two story books before 2020.

D

He wrote three novels and two story books before 2020.