This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Physiology
What is responsible for clearing & flushing food from the intestinal lumen in the interdigestive period? 
Select and explain. 
A. Gastrin, B. Migrating motor complexes, C. Secretin, D. CCK
B: Migrating motor complexes
Answer: B: Migrating motor complexes 
Explanation: Migrating motor complex (MMC) is well characterized by the appearance of gastrointestinal contractions in the interdigestive state. This review aicle discussed the mechanism of gastrointestinal MMC.which helps in clearing and flushing of food during the interdigestive period. Ref: guyton and hall textbook of medical physiology 12 edition page number: 445,446,447