For the reaction VC₁₂ + C₁₂ → VC₁₅, what are the reactants and products?
A. Products: VC₁₂ and VC15; reactant: C₁₂
B. Reactants: VC₁₂ and Cla; product: VC₁₅
C. Products: VC₁₂ and Cla; reactant: VC₁₅,