What can be inferred from paragraph 4 about how residents of Tikal met their needs for water and food during most periods of drought? A. They depended upon water and food that had been stored for use during the dry season. B. They obtained drinking water and water for crop irrigation from Coba dikes. C. They located their population centers near a lake where water was available for drinking and watering crops. D. They moved locations every 18 months to find new croplands and water sources.