Consider the following reaction:$ A + 3 B \rightarrow 2 C + 2 D$. At some point in the reaction $[B]=0.9986\; M$ and $13.20$ minutes later $[B]=0.9746\;M$. Based on this data, what is the average rate of the reaction during this time in $M/s$?

Question

$\begin{array}{1 1} (A) \;1.010 \times 10^{-5}\;M/s \\ (B)\;1.010 \times 10^{-3}\;M/s \\ (C)\;6.060 \times 10^{-5}\;M/s \\ (D)\; 60.60 \times 10^{-3}\;M/s \end{array}$