i will give branliest to the first one who gets it right

Which word or phrase helps clarify the meaning of the word secretes

The gallbladder is an organ that helps the body digest fat. The gallbladder stores bile, a fluid made by the liver. The gallbladder secretes the bile into the small intestine during the digestion process. Essentially, the gallbladder is responsible for releasing bile when the time is right. Sometimes, the gallbladder stops working properly. People suffering from gallbladder attacks may experience severe abdominal pain, nausea, trouble breathing, and vomiting. These attacks are typically caused by eating a particularly fatty meal.
Many people go for years without realizing something is wrong with their gallbladder, assuming that a bad stomach flu is to blame. For people with severe gallbladder problems, surgery is done to remove the organ. Humans can function fine without a gallbladder, though they may have a more difficult time digesting fatty foods.

so is it
a.fluid
b.during the digestion progress
c.responsible
d.releasing