Which of the following correctly lists the order sphincters from the beginning to the end of the digestive tract? upper esophageal → lower esophageal → pyloric sphincter → ileocecal sphincter → internal/external anal sphincter ileocecal sphincter → upper esophageal → lower esophageal → pyloric sphincter → internal/external anal sphincter pyloric sphincter upper esophageal → lower esophageal → ileocecal sphincter → internal/external anal sphincter upper esophageal → lower esophageal → ileocecal sphincter pyloric sphincter → internal/external anal sphincter
