Each of the following equations is of the form $y=\frac{1}{5}(x+2{)}^p(x-1{)}^q(x-3{)}^r$, where $p$, $q$, and $r$ are positive integers. The graph of such a function has x-intercepts at $x=-2,x=1,$ and $x=3$. For a certain function of this form, the graph has $y>0$ for all $x<-2$ and for all $x>3$. Which of the following equations could represent this function?