Respuesta :
It is d because it is the only one that is describing something and being specific
Answer:
The answer which would NOT be a good theme because it is too specific is (A) Don't sleep with gum in your mouth, it might end up in your hair.
Explanation:
(B), (C), and (D) are vaguer than (A). Those themes are good, as they could apply to a number of different situations. (A) is much too specific of a lesson to be good.