Simplify Write the Answer Using Positive Exponents Only $\left( x ^ { 2 } \right) ^ { - 7 }$

Multiple Choice

Simplify. Write the answer using positive exponents only.
- $\left( x ^ { 2 } \right) ^ { - 7 }$

A) $- 7 x ^ { 2 }$
B) $- 7 \times 14$
C) $- x ^ { 14 }$
D) $\frac { 1 } { x ^ { 14 } }$