Use L'Hopital's Rule to Evaluate the Limit $\lim _ { x \rightarrow 0 } \frac { \cos 9 x - 1 } { x ^ { 2 } }$

Multiple Choice

Use l'Hopital's Rule to evaluate the limit.
- $\lim _ { x \rightarrow 0 } \frac { \cos 9 x - 1 } { x ^ { 2 } }$

A) $\frac { 9 } { 2 }$
B) $- \frac { 81 } { 2 }$
C) $\frac { 81 } { 2 }$
D) 0