Calcium combines with bromine to form calcium bromide. Write the balanced chemical equation for this reaction. What is the coefficient for bromine?

A. Ca + Br₂ → CaBr₂ (Coefficient for Br₂: 1)
B. Ca + 2Br₂ → CaBr₂ (Coefficient for Br₂: 2)
C. 2Ca + Br₂ → 2CaBr₂ (Coefficient for Br₂: 1)
D. 2Ca + 2Br₂ → 2CaBr₂ (Coefficient for Br₂: 2)