Which of these statements identifies a difference between richard the lionheart and charlemagne?
a. richard the lionheart's forces conquered jerusalem, while charlemagne's forces conquered europe.
b. richard the lionheart fought the spread of islam, while charlemagne fought the spread of christianity.
c. richard the lionheart unified all of europe under one government, while charlemagne divided it into separate states.
d. richard the lionheart's major military campaign ended in a treaty, while charlemagne's ended in complete victory.