What Is the Marginal Utility of the Fourth Can of Soda

What is the marginal utility of the fourth can of soda? $\begin{array}{c}\begin{array}{|c|} \hline \text {Cans of Soda}\\\hline1\\\hline2\\\hline3\\\hline4\\\hline5\\\hline \end{array}\begin{array}{c|} \hline \text {Total utility}\\ \hline14\\ \hline\\ \hline36\\ \hline44\\ \hline\\ \hline \end{array}\begin{array}{c|} \hline \text {Marginal utility}\\ \hline\\ \hline12\\ \hline\\ \hline\\ \hline6\\ \hline\end{array}\end{array}$

A) 44 units of utility
B) 10 units of utility
C) 8 units of utility
D) 2 units of utility