The Rectangular Equation That Corresponds to the Polar Equation $r = - 7 \sin \theta$

Multiple Choice

The rectangular equation that corresponds to the polar equation $r = - 7 \sin \theta$ is

A) $x ^ { 2 } + y ^ { 2 } = - 7 y$
B) $x ^ { 2 } + y ^ { 2 } = - 7 x$
C) $x ^ { 2 } + y ^ { 2 } = 7 y$
D) $x ^ { 2 } + y ^ { 2 } = 7 x$
E) $x ^ { 2 } + y ^ { 2 } = \frac { y } { 7 }$