Use Graphical Methods to Solve the Linear Programming Problem

Use graphical methods to solve the linear programming problem.
-Minimize z = 2x + 4y subject to:
x + 2y ≥ 10
3x + y ≥ 10
x ≥ 0
Y ≥ 0

A) Minimum of 0 when x = 0 and y = 0
B) Minimum of 20 when x = 10 and y = 0
C) Minimum of 20 when x = 2 and y = 4
D) Minimum of 20 when x = 2 and y = 4,as well as when x = 10 and y = 0,and all points in between