Correct Answer - C
(a) `Ph-overset(O)overset(||)(C)-underset(D)underset(|)(CH)=CH_(2)`
(b) `Ph-overset(O)overset(||)(C)-underset(darr "Several times repeation")underset(D)underset(|)(C)=CH-CH_(2)D`
Product will be `Ph-overset(O)overset(|)(C)-underset(D) underset(|)(C)=CH-CD_(3)`
