Which character is the best example of a tragic hero?

a. a small boy who is kidnapped and forced to become a slave grows up to be a mighty warrior and fights to free the other enslaved people of his country.

b. after he is murdered by his ambitious son, an aging king returns as a ghost in order to haunt his son and cause him to regret his actions.

c. after cruelly clawing his way to power, a king is haunted by those he has harmed along the way and realizes he has lost everything.

d. a young prince who is sent to a prison tower to live out the rest of his life enviously watches life pass him by and plots his revenge.