Simplify Write the Answer Using Positive Exponents Only $\left( 6 ^ { - 6 } \right) ^ { - 3 }$

Multiple Choice

Simplify. Write the answer using positive exponents only.
- $\left( 6 ^ { - 6 } \right) ^ { - 3 }$

A) $\frac { 1 } { 6 ^ { 18 } }$
B) $6 ^ { 18 }$
C) $\frac { 1 } { 6 ^ { 9 } }$
D) $6 ^ { 9 }$