(A) All the noble gases have `ns^2 np^6` electronic configuration in their outermost shell
(R) In noble gases all the energy levels are completely filled.

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. Both (A) and (R) are false

Answer

D