This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
Which of the following is TRUE regarding gastric emptying: 
Select and explain. 
A. Decreased by CCK., B. Decreased by gastrin, C. Increased by secretin, D. Decreased by insulin.
A: Decreased by CCK.
Answer: A: Decreased by CCK. 
Explanation: A i.e. Decreased by CCK