In the nuclear reaction, 93N239 → 93Pu239 + ?; the missing particle is a/an

In the nuclear reaction, 93N239 → 93Pu239 + ?; the missing part

1.	In the nuclear reaction, 93N239 → 93Pu239 + ?; the missing particle is a/an
A.	Electron
B.	Proton
C.	Neutron
D.	Position
Answer» B. Proton