What inborn error of metabolism affects pancreatic secretion of digestive fluids?

Out of the following given choices;

a)      phenylketonuria (PKU) b) diabetes mellitus c) cystic fibrosis d) ketoacidosis

The answer is C. It is a defect of the chloride ion channels (due to mutation of the CFTR gene) that help with the concentration and secretion of all the fluids in your body affecting mostly the lungs, pancreas, liver, kidneys, and intestine, hence causing excessive production of mucus that clogs up the organs.

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus

it is either c or d and i know for sure it is not a or b