Shown below is an overall reaction:
H₂ + Br₂ ⟶ 2HBr
The accepted mechanism for this reaction is:
Br₂ + 2MH ⇌ 2MBr + H₂ (slow)
2MBr + H₂ ⟶ 2HMBr (fast)
2H + Br₂ ⟶ HBr + Br (fast)

What is a rate law that is consistent with the mechanism for this reaction?
A) Rate = k [Br₂] [MH]²
B) Rate = k [Br] [H]
C) Rate = k [Br]² [H₂]