Pat and Terry are considering moving from near the center of a large city into the suburbs. Which of the following discussion points is valid? a. If they stay in the city, they will contribute more to local pollution. b. They'll experience more stress if they move to the suburbs. c. If they stay in the city, they'll probably get less exercise. d. It will be easier to have a place for a vegetable garden if they move to the suburbs. e. If they move to the suburbs, it will cost much less for transportation.