Answer:
They could not afford to pay the taxes
Feudalism was initially displayed after the Roman custom of support. Feudalism was a mix of legitimate and military traditions in medieval Europe that prospered between the ninth and fifteenth hundreds of years. Extensively characterized, it was a method for organizing society around connections gotten from the holding of land in return for administration or work.
D. They improved conditions on slave ships to help more people survive.
How would you know what continent if he/she didn't tell you?