During the Revival of Western Europe (1000-120 0), the Population

During the revival of Western Europe (1000-120 0) , the population nearly doubled, in part because of

A) papal edicts to encourage increased birthrates.
B) the Christian Crusades.
C) technological innovations such as a new type of plow and efficient draft harness es.
D) the abolition of the death penalty for debtors across Europe.
E) the introduction of rice (from Arab lands) to the diet.