“we will have some capital hunting, you and I.” said the general. “i shall be most glad to have your society”

why is this paragraph an example of sarcasm

the general implies that they are equally skilled in hunting, but the general thinks he is a better hunter than Rainsford
The general sounds like he is happy to go hunting with Rainsford, but he is actually angry that rainsford is on the island
The general makes it sound like he and Rainsford will be hunting together but really the general is going to hunt Rainsford.
The general treats Rainsford as though they are members of a high society, but the general secretly disrespects Rainsford

The correct option that represents sarcasm in the paragraph is: The general makes it sound like he and Rainsford will be hunting together, but really the general is going to hunt Rainsford.

This is sarcasm because the general is using a sarcastic tone and implying the complete opposite of what he really means. While he states that he is glad to have Rainsford's company, the true intention is to hunt Rainsford, not to hunt with him.