A Proposed Mechanism for the Reduction of Nitrogen as NO $\rightarrow$

A proposed mechanism for the reduction of nitrogen as NO by hydrogen is: Step 1: H₂(g) + 2NO(g) $\rightarrow$ N₂O(g) + H₂O(g)
(slow)
Step 2: N₂O(g) + H₂(g) $\rightarrow$ N₂(g) + H₂O(g)
(fast)
What is the rate law?

A) Rate = k[H₂][NO]
B) Rate = k[H₂]²[NO]
C) Rate = k[H₂][NO]²
D) Rate = k[H₂]²[NO]²
E) More information is needed to answer this question.