Read the paragraph from the introduction [paragraphs 1-3].

Many Christians thought that by participating in the Crusades they would atone for their sins. On the breast of their tunics thousands of knights and soldiers wore a cross of blood-red cloth to show they were going on Crusade. Those who returned wore the cross on their backs. The Latin word for cross is "crux," and from this word come the words "crusade" and "crusader."

Based on the context of the paragraph, which option BEST expresses the meaning of the word "crusader"?

A
one who struggles with sin
B
one who believes in atonement
C
one who advances the cross
D
one who bears the burden of the cross