Evaluate the Difference Quotient for the Function $$f ( x ) = 3 x ^ { 2 } - 20$$

Multiple Choice

Evaluate the difference quotient for the function. $$f ( x ) = 3 x ^ { 2 } - 20$$

A) 3
B) $\quad 1$
C) $\quad 6$
D) $\quad 3 x + h$
E) $\quad 6 x + 3 h$