A 46-year old diabetic woman presents with intense nausea for 2 weeks duration. She is subsequently diagnosed with diabetic gastroparesis and started on metoclopramide as an anti-emetic. Which of the following drugs has a similar mechanism of action as that of metoclopramide?
A. Prochlorperazine
B. Dronabinol
C. Aprepitant
D. Ondansetron
E. Cisapride