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 ‘.

A

‘The Book of Gutsy Women,’is being worked upon by Hillary Clinton and her daughter Chelsea.

B

Hillary Clinton and Chelsea will have worked upon ‘The Book of Gutsy Women’.

C

‘The Book of Gutsy Women’ would have been worked upon by Hillary Clinton and her daughter Chelsea.

D

Hillary Clinton and her daughter Chelsea were working upon ‘The Book of Gutsy Women.’