Use the Properties of Exponents to Simplify the Expression $x ^ { 1 / 8 } \cdot x ^ { 7 / 8 }$

Multiple Choice

Use the properties of exponents to simplify the expression. Write with positive exponents.
- $x ^ { 1 / 8 } \cdot x ^ { 7 / 8 }$

A) $\frac { 1 } { x }$
B) $x ^ { 7 / 64 }$
C) $x ^ { 7 / 8 }$
D) $x$