Use Duality to Solve the Problem $w=5 y 1+3 y_{2}$ Subject To

Multiple Choice

Use duality to solve the problem.
-Minimize $w=5 y 1+3 y_{2}$
Subject to: $2 \mathrm{y}_{1}+3 \mathrm{y}_{2} \geq 9$
$2 \mathrm{y}_{1}+\mathrm{y}_{2} \geq 11$
$\mathrm{y}_{1} \geq 0, \mathrm{y}_{2} \geq 0$

A) 33
B) 27
C) 25
D) 27.5