Choose the most appropriate option to change the voice (active / passive) form of the given sentence.
Hillary Clinton and her daughter Chelsea are working on ‘The Book of Gutsy women ‘.

Options

A. ‘The Book of Gutsy Women,’is being worked upon by Hillary Clinton and her daughter Chelsea.
B. ‘The Book of Gutsy Women’ would have been worked upon by Hillary Clinton and her daughter Chelsea.
C. Hillary Clinton and her daughter Chelsea were working upon ‘The Book of Gutsy Women.’
D. Hillary Clinton and Chelsea will have worked upon ‘The Book of Gutsy Women’.

Answer

A