<span>I think George is unhappy because Lennie and Candy tell Crooks about the land. In my opinion, George has a right to be upset but he should not take it his anger in front of Crook's.</span>
The domestication of horses behavior changed quite a lot because before they were domesticated they were WILD horses. So they probably were aggressive animals. Considering how big horses are they definitely would have kicked you if you approached them. Since horses have been domesticated they act less hostile. They have also became smarter, they have a really strong fight or flight system.
(I don't know if this helped, but it took me awhile to find this information)
The correct answer is B. Byron himself
Byron presented his early life in the story of Childe Harold in which he regretted his wasted youth and wished he could change things.