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 beta^(o+)`-decay
(c ) `A gamma`-decay (d) `A K`- capture process
A. An `alpha`-decay
B. `A gamma`-decay
C. `A K`-capture process
D. `A beta`-decay