Answer
D
Work Step by Step
Using the origin as a test point, we can see that $y\leq5$ is a true statement ($0 \leq5$) and $x\lt3$ is a true statement ($0\lt 3$).
With $y\leq5$ being true, we would shade below the line $y=5$. With $x\lt3$ being true, we would shade to the left of the line $x=3$.