Patsy Turvill, a 77-year-old female, believes it is important to have a bowel movement every day. She takes milk of magnesia on any day that her bowels do not move. She has not had a bowel movement for three days, despite taking milk of magnesia. Patsy calls her physician for help. After taking a thorough history and physical and finding nothing remarkable, the office staff attempt to educate her about constipation. What instruction should Patsy receive about her diet to prevent and relieve constipation? a. Eat six small meals a day. b. Eat a high-fiber diet. c. Drink a glass of water with lemon at every meal. d. Increase the intake of dietary fats from animal sources.