Why Did Capitalism Begin to Replace Feudalism

Why did capitalism begin to replace feudalism?

A) More crops were being produced than could be consumed locally, turning farming from a subsistence activity that one did to survive into a for-profit business.
B) Tenants who worked feudal land grew to understand themselves as having the same right to life, liberty, and the pursuit of happiness as landowners.
C) The legal category of "private property" was abolished by law.
D) Massive famines required greater cooperation among landowners and peasant workers if any of them hoped to survive.