Irony is the correct answer
good luck
Lencho wanted it to rain for the crops
I think the answer is b because it shows most of what it is thinking and it also has the most information in his thoughts
I would say tense and uncomfortable because "it was undoubtedly hot" "he began to sweat" "began to throb in his ears" the sweat and heat makes it very uncomfortable also, the rumbling and throbbing sound makes it tense.
hope this helps :D