Which of the Following Was a Result of the Black

Which of the following was a result of the Black Death in Europe?

A) Traditional political institutions gained strength, because only strong states seemed capable of dealing with the plague.
B) The wealthy were able to escape the Black Death because they could afford the best medical care.
C) Some individuals, believing that the church had lost God's favor, retreated into personal spirituality to put their lives in order.
D) Population densities recovered quickly because of the introduction of new food crops from the Americas.