What Is the Most Logical Reason for China Adopting Its

What is the most logical reason for China adopting its one-child policy?

A) It was clear that the country could not live within the limit of its resources if the population continued to grow.
B) Contagious disease was rampant in the 1970s and fewer people meant less contagion.
C) The fertility rate was too low and the country needed more people to populate vacant lands.
D) The modernizing country wanted to give its women greater reproductive freedom.