Which of the following systems of inequalities has no solution?

Which of the following systems of inequalities has no solution?

A. y space less than space 0 space_x000D_
x space greater or equal than space 0

B. 3 x space minus space 4 y space less than space 1 space_x000D_
3 x space minus space 4 y space less than space 8

C. 4 x space plus space y space greater than space 4 space_x000D_
8 x space plus space 2 y space less than space minus 5

D. 3 x space minus space y space greater than space 1 space_x000D_
6 x space minus space 2 y space less than space 20