It Has Been Argued That the United States Has a Serious

It has been argued that the United States has a serious consumption overpopulation problem. Why is this possibly true?

A) Birth rates are very high in the United States and this consumes a lot of hospital resources.
B) The United States is highly urbanized and this requires a massive transit system.
C) The United States climate is cold and this requires a huge use of fossil fuels to stay warm.
D) The United States population consumes too large a portion of the world's resources due to relatively affluent lifestyles.