Which function$(s)$ below can $be$ written $as$ a composition $of$ functions where $?$ Select all that apply.

$[$ UCONN $1071Q]$ Let $f(x)=x^2+3x-10$ and $g(x)=x^2-4.$ Which $of$ the following

expressions $is$ equal $to\frac{f(x)}{g(x)}(whenitis$ defined$)?$

$(A)\frac{x-5}{x+2}$

$(B)x+5$

$(C)\frac{x+5}{x-2}$

$(D)\frac{x-5}{x-2}$

$(E)\frac{x+5}{x+2}$