When nucleus of an electrically neutral atom undergoes a radioactive decay process, it will remain neutral after the decay if the process is
(a) An `alpha`- decay (b) `A bete^(o+)`-decay
(c ) `A gamma`-decay (d) `A K`- caputure process
A. an `alpha` decay
B. an `beta ` + decay
C. a `gamma` decay
D. a K capture