The polar equation is .
Convert the polar equation to a rectangular equation.
\Squaring on each side.
\
Substitute .
.
The equation in rectangular form is .
The equation is in the form of standard circle equation
with center
and
.
Observe the graphs:
\The graph (E) is a circle with radius and center
.
The graph (E) is correct choice.
\The graph (E) is correct choice.