Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A:        

 can be easily reduced using Zn $$-$$ Hg/HCl to

.
Reason R: Zn $$-$$ Hg/HCl is used to reduce carbonyl group to $$-$$CH$$_2-$$ group.
In the light of the above statements, choose the correct answer from the options given below:

A

A is false but R is true

B

A is true but R is false

C

Both A and R are true but R is not the correct explanation of A

D

Both A and R are true and R is the correct explanation of A