An assertion (A) and a reason (R) are given below.
Assertion (A) : The sale of mobile phones has increased manifold in recent times.
Reason (R): The craze for e-commerce drives mobile sales.
Choose the correct option .

A

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

B

A is true, but R is false

C

A is false, but R is true

D

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