Assertion (A): Ionisation potential of K is numerically the same as electron affinity of `K^(+)`
Assertion (R): Ionisation potential and electron affinity both depend on screening effect

Options

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