Column I contains names of the sphincter muscles of the alimentary canal and column II contains their locations. Match them properly and choose the correct answer.
| Column I | Column II | ||
|---|---|---|---|
| A | Sphincter of ani internus | p | opening of hepatopancreatic duct into duodenum |
| B | Cardiac sphincter | q | between duodenum and posterior stomach |
| C | Sphincter of oddi | r | guarding the terminal part of alimentary canal |
| D | Ileocaecal sphincter | s | between esophagus and anterior stomach |
| E | Pyloric sphincter | t | Between small intestine and bowel |
A = r, B = q, C = s, D = p, E = t
A = q, B = t, C = p, D = s, E = r
A = r, B = s, C = p, D = t, E = q
A = s, B = r, C = p, D = q, E = t