Assertion: When radius of circular loop carrying current is doubled, its magnetic moment becomes four times.
Rrason: Magnetic moment depends on area of the loop.

Options

A. Both (A) & (R ) are true and (R ) is correct explanation of (A )
B. Both (A) & (R ) are true , and (R ) is not correct explanation of (A )
C. (A ) is true , but (R ) is false
D. (A) is false and (R ) is also false