The correct statements about polio are:
A. The polio virus is spread through contaminated water or food.
B. The polio virus is a communicable disease.
C. If the parents have polio their children must have polio.
D. It is a highly infectious viral disease, which mainly affects young children.
1
Only A, B, and D
2
Only A, B, and C
3
Only A, C, and D
4
All are correct