Final answer:
The correct answer is option b. Under feudalism, peasants were not allowed to keep what they produced.
Step-by-step explanation:
Under feudalism, all of the following were true except.. peasants were allowed to keep what they produced. In the feudal system, peasants worked the land and produced goods, but they were required to give a portion of their produce to the lord as a form of rent or tax.
This arrangement was known as the manorial system, where peasants were tied to the land and had to provide labor and goods for the lord in exchange for protection and the right to live on the land.