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

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

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