The mass of `beta-`particles when they are emitted is higher than the mass of electrons obtained by other means
`beta-`particle and electron, both are similar particles.

Options

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.

Answer

B