Divide Leave Your Answer in Exponent Form $\frac { z ^ { 13 } } { z ^ { 12 } }$

Multiple Choice

Divide. Leave your answer in exponent form. Assume that all variables in any denominator are nonzero.
- $\frac { z ^ { 13 } } { z ^ { 12 } }$

A) $\mathrm { z }$
B) $\frac { 1 } { z }$
C) $\mathrm { z } ^ { 25 }$
D) $z ^ { 13 } - z ^ { 12 }$