Answer:
Hi! Your answer here is D. environmental factor. Being unable to play tennis due to extreme heat is an example of an environmental factor because the natural heat is preventing you from playing tennis. It is not a cost or equipment factor because it has nothing to do with either category. This is also not a personality factor because, though some people may naturally deal better with heat than others, that's influenced more by their location (example: California vs. Maine) than by their personality.
Hihi!
The correct answer would be that Diarrheal Diseases - Food Washing, Hepatitis - Avoidance of IV Drugs, and Mumps - Vaccination! If you need anymore help be sure to ask!
I hope I helped!
-Loliarual
applying ice will reduce blood flow and suppress milk production.
