Refer to the Accompanying Table A)75
B)60

Refer to the accompanying table. The marginal utility of the 4?? dinner out per week is:  
$\begin{array}{|c|c|c|}\begin{array}{c}\text { Number of Dinners } \\\text { Out Per Week }\end{array} & \text { Total Utility } & \text { Marginal Utility } \\\hline 1 & 100 \\\hline 2 & & 75\\\hline 3 & 235 & \\\hline 4 & 250 & \\\hline\end{array}$

A) 75.
B) 60.
C) 250.
D) 15.