Question

which of the following events significantly weakened the power of the catholic church during the middle ages?
the commercial revolution
the 100 years war
the three - field system
the crusades

Explanation:

The Crusades led to increased contact with other cultures, which challenged some of the Church - centered beliefs. It also caused political and economic upheavals that weakened the Church's hold. The Commercial Revolution mainly affected economic structures. The 100 Years' War was a political and military conflict between England and France. The Three - Field System was an agricultural innovation.

Answer:

The Crusades