Write Using Exponential Notation $7 ^ { 5 }$ B) $5 ^ { 7 }$

Write using exponential notation.
-7 ·7 ·7 ·7 ·7

A) $7 ^ { 5 }$
B) $5 ^ { 7 }$
C) $7 ^ { 0 }$
D) 5 ·7