I think it's A. It is definally not the climax as this happens when Beowulf kills the monster. It's not the resolution either as it is the first part of the text. Also, exposition seems a little unrelated.
The theme being presented was think twice before you say anything. I think this was the theme because, the grasshopper could not be responsible of getting food, and the ants did not want to give their food. So the theme was think twice before you say anything.
Answer:
what are you trying to ask
Explanation: