Let $f(x) = -5 - x^2$. Find each of the following:

(A) $\displaystyle{\frac{f(7) - f(1)}{7-1} =}$

(B) $\displaystyle{\frac{f(1 + h) - f(1)}{h} =}$

(C) $\displaystyle{\lim_{h\rightarrow 0}\frac{f(1 + h) - f(1)}{h} =}$