10. Which of the following statements about the mammalian digestive system is true? (A) Enzyme production continues in the esophagus. (B) All foods begin their enzymatic digestion in the mouth. (C) The trachea leads to the esophagus and then to the stomach. (D) After leaving the oral cavity, the bolus enters the larynx. (E) The epiglottis prevents food from entering the trachea.