________ Taking the time to explain something well one time will save time in re-explanations later

All of the following are predisposing factors for the development and progression of necrotizing ulcerative gingivitis except one. Which one is the exception?

A) Stress B) Trauma C) Smoking D) Malnutrition E) Osteoporosis

ACO stands for:

A) affordable care organization. B) acute care organization. C) accountable care organization. D) assurance care organization.