How does the author create surprise in this myth?

a. the author draws a parallel between pythias and damon, but damon turns out to be braver.

b. the author establishes intense loyalty between the friends, but damon betrays pythias in the end.

c. the author sets up dionysius as cruel, but he is won over by the example of the two friends.

d. the author foreshadows that pythias will not return, but he does.