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

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

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