Which describes how the mypyramid plan is structured

hi there it wont let me comment but what are the options?

it differs according to a person’s age, sex, and activity level.

i'm pretty sure questions like these aren't allowd.   but, sure.   i can and talk : ))

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.