What Was the Attitude of Lords to Peasants Opening Wastelands

What was the attitude of lords to peasants opening wastelands to cultivation?

A) They discouraged it for fear of a drain on labor available to them.
B) They encouraged it by replacing personal service with rents in exchange for moving to new lands.
C) They confiscated newly opened land from peasants and enserfed them.
D) They encouraged it by offering to buy the land from the peasants once it was improved.
E) They remained indifferent since it was not a new phenomenon.