Use the Given Feasible Region Determined by the Constraint Inequalities $g = 4 x + 5 y$

Multiple Choice

Use the given feasible region determined by the constraint inequalities to find the minimum possible value of the
objective function.
-Find the minimum possible value of $g = 4 x + 5 y$ subject to the following constraints:
$$\left\{ \begin{array} { l } x - 2 y \leq 5 \\2 x + y \geq 15 \\x \geq 0 , y \geq 0\end{array} \right.$$

A) 39
B) 20
C) 75
D) 33