Well, the first reason is that back then, in Dante's time, "comedy" didn't really mean funny. In this case, it meant that even though the whole story/poem is full of despair and torture and torment, it actually ends with a happy ending. Back in Dante's era, this meant that instead of being a tragedy, this epic poem was considered a comedy.
Consider Shakespeare's work Romeo and Juliet. It ends with the two young lovers dying, right? That is a tragedy. There is no happiness there. But at the end of Inferno, Dante the Pilgrim actually succeeds in his goals. <span />
Answer:
1st one legend.
2nd one fairy tale
3rd one fable
Explanation:
legend : focuses on a historical figure, and describes his exploits.
fairy tale : children's story about magical and imaginary beings.
fable : mostly uses animals to tell/teach a moral story.
all praise his gentlemanly character.
some note his special kindness to Edna.