Assertion: The energy of an electron is largely determined by its principal quantum number.
Reason: The principal quantum number is a measure of the most probable distance of finding the electrons around the nucleus
(A) If both Assertion and reason are true and Reason is a correct explanation of Assertion.
(B) If both assertion and Reason are true but Reason is not a correct explanation of Assertion.
(C) If Assertion is true but Reason is false.
(D) If Assertion is false but reason is true.