Answer
Graph $C$
Work Step by Step
Given the function: $$y=(x-5)(x+3)$$
Rewrite it in the form $y=a(x-p)(x-q)$: $$y=(x-5)(x-(-3))$$
It follows that the $x$-intercepts are $5$ and $-3$.
The graph which intersects the $x$-axis at $x=5$ and $x=-3$ is graph $C$.