Atomic and Nuclear Physics — Physics STD 12 Science — Question

Assertion : Electron capture occurs more often than positron emission in heavy elements.
Reason    : Heavy elements exhibit radioactivity.(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.(c) If assertion is true but reason is false.(d) If the assertion and reason both are false.