Final answer:
In 'Of Mice and Men,' Lennie is fond of soft things like puppies and rabbits but the red dress is unrelated to this fondness and represents danger and consequences, making it the item that has nothing in common with the others in his mind.
Step-by-step explanation:
The student is asking about the character Lennie from John Steinbeck's novel 'Of Mice and Men.' Out of the options given, which include a puppy, mouse, red dress, lice, and rabbits, the item that has nothing in common with the others in Lennie's mind is the red dress. Lennie has a fondness for soft things, which is illustrated by his attachment to small animals like a puppy and a mouse, and his dream of tending to soft fur-covered rabbits on the farm he aspires to own with George. However, the red dress does not represent something soft or a part of Lennie's dream; it is associated with an incident that caused trouble for him and George in Weed, thus setting the events of the novel in motion. Therefore, the red dress stands apart as it is linked to danger and consequences rather than comfort and dreams.