Answer:
Option: A. Charles Martel stops the expansion of the Muslim empire into Europe.
Step-by-step explanation:
The Battle of Tours fought within Franks and Umayyad Caliphate in 732. Charles Martel was the Frankish leader. He played a vital role in defeating the army of Spanish Moors who were trying to enter Western Europe. Franks were able to win the battle by defeating Muslims who never attacked with such force.