Given $f(x)=\frac{x^{2}-3 x-4}{x^{2}+11 x+30}$ , Find All Values For $x$ For Which $f(x)<0$

Multiple Choice

Given $f(x) =\frac{x^{2}-3 x-4}{x^{2}+11 x+30}$ , find all values for $x$ for which $f(x) <0$ .

A) $(-\infty,-4) \cup(1,4) \cup(5, \infty)$
B) $(-1,4)$
C) $(-6,-5) \cup(-1,4)$
D) $(-\infty,-6) \cup(-5,-1) \cup(4, \infty)$