In the Reaction P₄(s) + 10Cl₂(g) $\rightarrow$ 4PCl₅(s), Chlorine Is ______________

In the reaction P₄(s) + 10Cl₂(g) $\rightarrow$ 4PCl₅(s) , chlorine is ______________.

A) oxidized
B) reduced
C) synthesized
D) electrolyzed
E) none of these