Uhh, probably D? Just an educated guess
Southeastern united states
B is the answer to this question
He ratio between circumference<span> and </span>diameter<span> of any circle in a Euclidean space, is the same value as the ratio of area of a circle and square of its radius. pi=2*pi*R/2*R, where 2*pi*R=</span>circumference<span> of any circle and 2*R=D=</span>diameter<span> of any circle.</span>