Identify the Center and Radius of the Circle $4 x ^ { 2 } + 4 y ^ { 2 } = 1$

Multiple Choice

Identify the center and radius of the circle $4 x ^ { 2 } + 4 y ^ { 2 } = 1$ .

A) center: (0,0) radius: $\frac { 1 } { 4 }$
B) center: (1,1) radius: 4
C) center: (1,1) radius: 2
D) center: (2,2) radius: 1
E) center: (0,0) radius: $\frac { 1 } { 2 }$