What Is the Range of the Function $y = \left( \frac { 1 } { 5 } \right) ^ { x }$

Multiple Choice

What is the range of the function $y = \left( \frac { 1 } { 5 } \right) ^ { x }$ ?

A) $( \infty , 0 )$
B) $( \infty , \infty )$
C) $( 0 , \infty )$
D) $[ 0 , \infty )$