After the invasions began, european landowners found protection by entering into
a. feudal arrangements.
b. mercenary contracts.
c. land and sea watches.
d. sovereignty agreements.

Respuesta :

Feudal arrangements were the measure that the European landowners did in order to protect their land and properties against the frequent invasions taking place. By an agreement, the landowner would pay for the protection that the feudal lord will provide against the invading forces.