Which of the Following Describes the Sequential Processes Occurring in the Stomach

Which of the following describes the sequential processes occurring in the stomach?
I-Peristaltic waves of contraction propel the food along the esophagus.
II-Gastric juices are secreted with the arrival of food into the duodenum.
III-The acidic chyme is transferred through the pyloric sphincter.
IV-HCl and pepsin begin digestion of proteins into shorter polypeptides.

A) IV,III,and II
B) II,III,and IV
C) I,II,and III
D) I,II,and IV
E) II,IV,and III