Assertion : During `beta`-decay a proton converts into a neutron and an electron. No other particle is emitted.
Reason: During `beta`-decay linear momentum of system should remain constant.
A. (a) If both Assertion and Reason are true and Reason is correct explanation of the Assertion.
B. (b) If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
C. (c) If Assertion is true, but the Reason is false.
D. (d) If Assertion is false but the Reason is true.
