I think they are all right.
C. It requires intermediate medical help
I do believe you are looking for Woody Guthrie :)
Answer:
Health-Illness Continuum
Explanation:
Health and illness can be viewed as the opposite ends of a health continuum• From high level of health a person's condition can move through good health -- normal health -- poor health -- extremely poor health -- to death. People move back and forth within this continuum day by day.