Answer
Choice C
Work Step by Step
$\bf{\text{Solution Outline:}}$
Use concepts of graphing linear equations to describe the graph of the given equation, $
y=-5
.$
$\bf{\text{Solution Details:}}$
Equations of the form $y=b,$ has a graph of a horizontal line passing at the $y-$value equal to $b.$ Hence, the graph of the given equation is $\text{
Choice C
.}$