Simplify and Write with Positive Exponents Only $x ^ { - 5 } \cdot x ^ { 3 }$

Multiple Choice

Simplify and write with positive exponents only.
- $x ^ { - 5 } \cdot x ^ { 3 }$

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