Why Is Total Fertility Generally Higher in Developing Countries Where

Why is total fertility generally higher in developing countries where there are fewer resources?

A) People are unable to control their reproduction to match resource availability.
B) There is higher infant mortality, so people have more children to ensure at least some survive.
C) Women are smarter in developed countries.
D) There is high social pressure in developed countries not to have too many children.
E) Many developing countries are planning to institute one child per couple policies, so people are trying to have children while they can.