Compared to the World,the Rate of U

Compared to the world,the rate of U.S.population growth is

A) slower than in the world as a whole.
B) about the same as in the world as a whole.
C) much faster than in the world as a whole.
D) incomparable because U.S. residents are born with a much greater chance of accumulating a lot of human capital.
E) incomparable because we do not have accurate world population statistics.