The Left Semicircle Centered at (0, 0) with Radius 4 $x = \sqrt { 4 - y ^ { 2 } }$

Multiple Choice

The left semicircle centered at (0, 0) with radius 4

A) $x = \sqrt { 4 - y ^ { 2 } }$
B) $x = \sqrt { 16 - y ^ { 2 } }$
C) $x = - \sqrt { 4 - y ^ { 2 } }$
D) $x = - \sqrt { 16 - y ^ { 2 } }$