5. Doctors earn more than people in other professions basically because (LO2, 3) a) they need to be compensated for all those years they spent in school b) they are in short supply relative to the demand for their services c) it costs a lot more to be a doctor-office expenses, support staff, and malpractice insurance-than it does to be in almost any other profession d) doctors put in longer hours than most other people 6. More poor people live in than in any other area of the United States. (LO5) a) cities b) suburbs c) smaller metropolitan areas d) rural communities