Choose the most appropriate option to change the voice (active / passive) form of the given sentence.
I am writing a story after a long time.

Options

A. a) A story is being written by me after a long time.
B. b) I have written a story after a long time.
C. c) A story after a long time was written by me.
D. d) A story had been written by me after a long time

Answer

A