Simplify Assume That Variables in the Exponent Represent Nonzero Integers $\left( \frac { x ^ { 2 } t } { x } \right) ^ { 4 }$

Multiple Choice

Simplify. Assume that variables in the exponent represent nonzero integers and that all other variables are not 0.
- $\left( \frac { x ^ { 2 } t } { x } \right) ^ { 4 }$

A) $4 x ^ { 2 t } - 4$
B) $x ^ { 8 t - 4 }$
C) $4 x ^ { 2 t }$
D) $x ^ { 8 t }$