Question

Which of the following is not a factor influencing preventive measures used to combat the spread of disease

Answer 1

A. Cleanliness of food 
B. Behavior 
C. Sanitation 
D. Antibiotics

If the above are the choices given in this question, then my answer is D. ANTIBIOTICS.

Cleanliness of food, behavior, and sanitation are all factors that prevents the spreading of diseases. 

Antibiotics are taken to combat the acquired diseases. It simply signifies the presence of a disease that needs to be eradicated from the system.