Read the following fable by Aesop and identify the theme. The Fox and the Grapes by Aesop A Fox one day spied a beautiful bunch of ripe grapes hanging from a vine trained along the branches of a tree. The grapes seemed ready to burst with juice, and the Fox's mouth watered as he gazed longingly at them. The bunch hung from a high branch, and the Fox had to jump for it. The first time he jumped he missed it by a long way. So he walked off a short distance and took a running leap at it, only to fall short once more. Again and again he tried, but in vain. Now he sat down and looked at the grapes in disgust. "What a fool I am," he said. "Here I am wearing myself out to get a bunch of sour grapes that are not worth gaping for." And off he walked very, very scomfully.

A. Grapes are not a healthy snack for foxes.
B. If you can't have it, nobody should have it.
C. It's easy to hate what you cannot have.
D. When a task is too hard, it is best to just give up.