Which dimension of a geometric figure has a length of 4 units?
A. one edge length of a square with an area of 8 square units
B. one edge length of a square with an area of 16 square units
C. one edge length of a cube with a volume of 16 cubic units
D. one edge length of a cube with a volume of 64 cubic units
E. the radius of a circle with an area of 4pie square units
F. the radius of a circle with an area of 8pie square units