Answer:The correct answer is (D)
The western schism actually divided the European catholic church but the victory of Charles Martel's in the battle of tours unified the Christians
<u>Explanation:</u>
The battle of Tours occupies a significant role in history.This battle stopped the advance of Muslim empire,which had conquered much of Europe.Schism among the parties causing difference of opinions.The <u>Western schism </u>is also known as Great schism.It lasted from 1378 to 1417 ,when there two and later three rival popes,each with his own followings.
The archbishop of Bari was elected pope as <u>Urban VI</u> on the demand of Romans.Urban VI proved to be hostile to cardinals.They cardinals retired and elected one of themselves Robert of Geneva as <u>Clement VII</u> ,claiming re-elections.
Double elections had disastrous effects and various proposals for ending up the schism were made.
<u>Charles Martel's</u> played a very important role in the battle of tours.He ruled the kingdom of Franks.He was a very intelligent military commander.He was victorious.He stopped the Muslims from advancing towards Europe and invading France.