Which of the Following Particle Reactions Cannot Occur?
A)p $\rightarrow$ P + P + P

Multiple Choice

Which of the following particle reactions cannot occur?

A) p + p $\rightarrow$ p + p + p + $\bar{p}$
B) p + $\rightarrow$ 2 $\gamma$ $\bar{p}$
C) ( $\pi$ + + p $\rightarrow$ K+ + $\Sigma$ +)
D) ( $\gamma$ + p $\rightarrow$ n + $\pi$ 0)
E) (e-+ e+ $\rightarrow$ 2 $\gamma$ )