(the answer is b)it coulve been a but it say "only" and stress has a lot of effects on the body and c and d are answers to trick you but you have to pay attention to what it actually states
Qualified staff,quality aftercare,<span>family involvement
</span>
A. Practicing abstinence
B. Hand washing
C. Using insecticide
Well this is a good question with some pretty funny answers. Just by looking at it we can use common knowledge to say D is wrong, therefore it can be eliminated. Also look at A is has nothing to do with the delaying of childhood diseases, so it can be eliminated. Then look at B I mean there is no delaying the child already has diseases. So the correct answer is C)lack of health insurance
