Find the Derivative of the Function $f ( x ) = \frac { x ^ { 2 } - x - 20 } { x + 4 }$

Multiple Choice

Find the derivative of the function $f ( x ) = \frac { x ^ { 2 } - x - 20 } { x + 4 }$ . State which differentiation rule(s) you used to find the derivative.

A) 1, Product Rule.
B) 1, Quotient Rule
C) 5, Product Rule.
D) 5, Quotient Rule
E) x+3, Product Rule.