well, to make it easier lets translate the words:
1. el disco compacto = the compact disc
2. la tienda de ropa = the clothing store
3. El libro = the book
4. la revista = magazine.
So, it looks like 3 out of 4 are items; which would be the el disco compacto, el libro, and la revista. Therefore, the clothing store, or la tienda de ropa is the one that does not belong.
If you had to choose a movement to study. Which would it be and why?
Por la noche, yo me quito la ropa.
hope this helped!