Choose the most appropriate option to change the voice (active / passive) form of the given sentence.
My art teacher asked me whether I had attended her classes.

Options

A. a) I was asked by my art teacher whether I had attended her classes
B. b) I was being asked by my art teacher whether I was attending her classes.
C. c) My art teacher asks me whether I attended her classes.
D. d) My art teacher was asking me whether I had attended her classes.

Answer

A