According to the Text, When Malthus Was Making His Projections

According to the text, when Malthus was making his projections on population, he failed to foresee

A) the strength of the need most people have to reproduce and the objection of most religious authorities to curbing reproduction.
B) high-speed forms of travel, including air travel, that mean an infectious illness can spread around the world in a matter of hours.
C) the willingness that people have to act responsible and live sustainably so that their children will inherit a good quality of life.
D) the impact of advances in agricultural technology, disease prevention and treatment, and contraception.