Solve the Problem $f = 6 x + 7 y$ Subject to the Following Constraints

Multiple Choice

Solve the problem.
-Find the maximum value of $f = 6 x + 7 y$ subject to the following constraints.
$$\begin{array} { l } 2 x + 3 y \leq 12 \\2 x + y \leq 8 \\x \geq 0 \\y \geq 0\end{array}$$

A) Maximum of 32
B) Maximum of 24
C) Maximum of 52
D) Maximum of 13