There was no thought of rebellion or disobedience in her mind. She knew that, even as things were, they were far better off than they had been in the days of Jones, and that before all else it was needful to prevent the return of the human beings. Whatever happened she would remain faithful, work hard, carry out the orders that were given to her, and accept the leadership of Napoleon. But still, it was not for this that she and all the other animals had hoped and toiled. It was not for this that they had built the windmill and faced the bullets of Jones's gun. Such were her thoughts, though she lacked the words to express them. Which detail best supports the central idea that Clover is disappointed with the farm?

“There was no thought of rebellion or disobedience in her mind.”
“Whatever happened she would remain faithful, work hard, carry out the orders that were given to her.”
“But still, it was not for this that she and all the other animals had hoped and toiled.”
“Such were her thoughts, though she lacked the words to express them.”