Which of the following is not having feasible region given set of constraints for a linear programming problem?

$x+2 y \leq 50,3 x+y \leq 80, x \geq 0, y \geq 0$ $x+2 y \leq 50,3 x+y \geq 80, x \geq 0, y \geq 0$ $x+y \leq 10,2 x+y \geq 40, x \geq 0, y \geq 0$ $2 x+y \leq 30,5 x+2 y \leq 100, x \geq 0, y \geq 0$

$x+2 y \leq 50,3 x+y \leq 80, x \geq 0, y \geq 0$

The correct answer is Option () -