Which is “a system in which a ruler grants parts of his land to lords”?
feudalism
renaissance
reformation
crusades

Option A.

Explanation:

Feudalism, is the right answer.

Feudalism formed the basis of the government and the society of Europe in the middle ages. It flourished in Europe in the centuries between 9th and the 15th. This was a kind of system in which the ruler used to grant a piece of land to the lords for service. In its various forms, the feudalism emerged as a consequence of the decentralization of an empire. This system was based on a hierarchy in which the king was at the top and was followed by the church leaders or Bishops, Barons and nobles, Knights and Lords (the local Manors), and peasants and serfs at the bottom.

a is the final : )