What explains the increase in London’s population from 958,863 in 1801 to 4,776,661 in 1881? A. The Agricultural Revolution led to increases in agricultural production and resulted in a greater rural population. B. Widespread disease and poor sanitation severely impacted London’s population in the early 1800s: it did not rebound until the late 1800s due to improved nutrition. C. The Industrial Revolution created more jobs and resulted in a greater urban population. D. Immigration to London from New York City sparked a massive population increase.