Kamlesh was conducting an experiment to figure out the rate equation of the following reaction:
`2 NO + O_2 rightarrow 2 NO_2`
He measured the rate of this reaction as a function of initial concentrations of the reactants as follows:

Which of the following could be a reason for the inconsistency in the initial rate of formation of `NO_2` data for experiment 4?

Options

A. The rate of reaction does not depend on the concentration of the reactants.
B. Higher concentration of `O_2` could have resulted in slowing down the rate of reaction.
C. Higher concentration of NO could have resulted in slowing down the rate of reaction.
D. The temperature of the reactants in experiment 4 could have been different than for the other experiments.