Which of the following is the most likely reason that the author shows Beowulf as a warrior at different stages of his life?
A. to show that Beowulf maintained the qualities of an epic hero until his death and so deserves glory
B. to warn young warriors that their fighting powers will inevitably decline and lead to their death
c. to portray Beowulf as a superhuman warrior who is never defeated
D. to persuade younger warriors to help older ones in battle