What is the main idea of the "my side of the mountain"?

The theme in My Side Of The Mountain is survival. In this book, Sam survives in the wild while trying to stay away from people. In many parts of the book Sam has trouble finding food and making shelter. The theme is evident early in the book.

judy jones is an attractive woman who receives attention from many men throughout the story.   despite her beautiful appearance, she is superficial and callous.   she is an aggressive woman who goes after any man she desires but she is not happy.   she is fickle and is never satisfied.   her beauty is only skin deep.   dexter breaks down because he knows his dreams are unattainable.   he believes that wealth and physical beauty are what will make him happy.   he soon realizes that she has lost her attractive looks.   it is not all what he had planned.

the answer is d. she became an english professor at university of georgia.