Give reasons:
Health education is based on variety of subject.
a.​

Explanation:

Health education is based on variety of subject because it concerns with the sanitation and cleanliness of environment comprising environmental aspect,relating population aspect by health of people.Besides,it covers different dimensions.

Keep smiling and hope u r satisfied with my answer.Have a nice day :)

i think it's the first one because doctors aren't the ones who get rid of the old needles. most of them time it's not even doctors who give you shots, it's nurses.