The Human Population Began to Increase Noticeably Around 10,000 Years

The human population began to increase noticeably around 10,000 years ago.What has been hypothesized as the reason for the population increase at that time?

A) the discovery of medicine
B) the development of agriculture and the domestication of animals
C) an increase in the size of women's pelvic openings that assisted in labor
D) construction techniques that allowed for stronger homes that were better heated