The Radiation Emitted When a Nucleus Undergoes Spontaneous Fission Is ${ } _ { 0 } ^ { 0 } \gamma$

The radiation emitted when a nucleus undergoes spontaneous fission is _____.

A) ${ } _ { 0 } ^ { 0 } \gamma$
B) ${ } _ { + 1 } ^ { 0 } \beta$
C) ${ } _ { 2 } ^ { 4 } \alpha$
D) ${ } _ { 0 } ^ { 1 } n$
E) ${ } _ { -1 } ^ { 0 }\beta$