Nitrogen Dioxide Reacts with Carbon Monoxide to Produce Nitrogen Monoxide

Nitrogen dioxide reacts with carbon monoxide to produce nitrogen monoxide and carbon dioxide.
$\begin{array}{l}2 \mathrm{NO}_{2}(g) \rightleftharpoons \mathrm{NO}_{3}(g) +\mathrm{NO}(g) &(fast, equilibrium) \\\mathrm{NO}_{3}(g) +\mathrm{CO}(g) \rightarrow \mathrm{NO}_{2}(g) +\mathrm{CO}_{2}(g) &(slow) \end{array}$

What is a rate law that is consistent with the proposed mechanism?

A) rate = k[NO₂]²×[CO]× [NO]^-1
B) rate = k[NO₂]²×[CO]
C) rate = k[NO₂]×[CO]
D) rate = k[NO₃]×[CO]
E) rate = k[NO₂]²