Acetylcholine stimulates cells in the pancreas to secrete enzymes that aid in digestion of sugars. It does so by activating GPCRs that stimulate the membrane-bound enzyme phospholipase C (PLC). PLC then triggers which of these downstream events?

An elevation of cytosolic Ca2 + concentration, which leads to the activation of protein kinase C (PKC).

Explanation:

Pancreatic enzymes are stored in acinar cells inside zymogen granules and released when necessary. The pancreas secretes a wide range of enzymes, which includes proteases, carbohydrases (pancreatic amylase and, in some cases, chitinase) and pancreatic lipase.

Acetylcholine is a molecule that is produced in neurons and is necessary so that it can transmit the nerve impulse both at the level of the central and peripheral nervous system. It is one of the most important neurotransmitters, being the main neurotransmitter of the so-called cholinergic system.

Acetylcholine, which is released from parasympathetic nerve terminals, stimulates the secretion of insulin, glucagon, somatostatin and pancreatic polypeptide.

Phospholipase C is a phosphodiesterase in charge for hydrolysis of a glycerophosphate bond, Phospholipase C is the target enzyme for some GPCRs.

Protein kinase C, is a family of protein kinase enzymes that are involved in controlling the function of other proteins through the phosphorylation of hydroxyl groups of serine and threonine amino acid residues on these proteins, or a member of this family.