Final answer:
During the enterogastric reflex, acid secretion in the stomach is inhibited.
Step-by-step explanation:
The answer to the question is c) Enterogastric.
During the enterogastric reflex, acid secretion in the stomach is inhibited. This reflex is activated when the duodenum, the first part of the small intestine, is distended with chyme. When the duodenum is filled with partially digested food, intestinal mucosal cells release a hormone called intestinal gastrin, which further excites gastric juice secretion.
However, when the intestine distends with chyme, the enterogastric reflex is triggered, inhibiting gastric juice secretion and closing the pyloric sphincter to prevent additional chyme from entering the duodenum.