Which of the Following Gas-Phase Reactions Is a Possible Chain-Terminating $\rightarrow$

Multiple Choice

Which of the following gas-phase reactions is a possible chain-terminating step in the light-initiated chlorination of methane?

A) Cl-Cl $\rightarrow$ 2Cl·
B) Cl· + CH₄ $\rightarrow$ CH₃· + H-Cl
C) CH₃· + CH₃· $\rightarrow$ CH₃-CH₃
D) CH₃· + Cl-Cl $\rightarrow$ CH₃Cl + Cl·
E) More than one of the above