As a Result of _____________ in 732, Charles Martel, 'The

As a result of _____________ in 732, Charles Martel, 'the Hammer', emerged as not only the most powerful man in Frankland but also the leader of the most powerful force in Latin Christendom.

A) Leading an expedition to recover Jerusalem from the Muslims
B) Instituting new metallurgical and tool-making skills among the Franks
C) Deposing the last Merovingian king
D) Defeating advancing Muslim armies at the Battle of Tours