Who Benefited from the Black Death

Who benefited from the Black Death?

A) Merchants: They benefited from the demands for goods and food in devastated areas and expanded their efforts to form more uniform trade networks.
B) Workers: Those who survived demanded high wages after the Black Death, increasing the standard of living for the broad mass of people.
C) Nobles: They gained more secure control over their land and over the serfs due to the protection they had provided during the plague.
D) Kings: They were able to capture more land for their realms because many areas were depopulated and undefended because of the plague.