As long as calories consumed and expended are not the same, diet or activity level should be adjusted for the good of the body's health.
Answer:
I am pretty sure that it is B. "Come on, Maryann. Try it. I'm totally sure that one puff won't kill you."
They can receive their funding from donations or a normal economic activity, with the difference being that all their revenue goes back into the function of the organisation.
Some services provided by non-profit are education and medical care, especially for the poor. An exemple is the Doctors Without Borders organisation.