European peasants traded their lands and freedom for a. A powerful noble's protection. b. The act of homage. c. The privilege of becoming knights. d. The trusted word of a powerful noble.

A powerful noble's protection

Explanation:

The European peasants and the Nobles had a cordial relationship.

Most of the people were peasants and the era of the feudal system encouraged them to be beholden to and in debt to the nobles for whom they worked.

The Nobles provided work, land, and protection to the peasants. The peasants in return provided funding, supplies, and military service to the nobles.

i think its provide for the common defense