We match the organs and their corresponding functions based on basic physiology:
- P: Stomach → N: Secretion of gastrin. The stomach secretes the hormone gastrin to regulate gastric acid secretion.
- Q: Liver → M: Synthesis and secretion of bile. The liver is responsible for the production and secretion of bile, which is stored in the gallbladder.
- R: Pancreas → K: Secretion of insulin and glucagon. The pancreas is responsible for producing insulin and glucagon, hormones that regulate blood glucose levels.
- S: Gallbladder → L: Storage of bile. The gallbladder stores bile produced by the liver before it is released into the small intestine.
Thus, the correct matching is:
P – N, Q – M, R – K, S – L.
Final Answer: (B)