How did being from rich families affect knights?

They rewarded knights, their most skilled warriors, with fiefs from their sprawling estates. Wealth from these fiefs allowed knights to devote their lives to war. Knights could afford to pay for costly weapons, armor, and warhorses. As the lord's vassal, a knight's main obligation was to serve in battle.

where are the options?

explanation:

the speech revealed that eastern european countries were no threat to their neighbors, which led to the creation of the truman doctrine i think this might be correct.