Which one statement is incorrect regarding the process of digestion and absorption in humans?

Correct the following statements by deleting one of the incorrect entries:
$(a)$ Goblet cells located in the intestinal mucosal epithelium secrete mucus/chymotrypsin.
$(b)$ Fats are broken down into di- and monoglycerides with the help of amylase/lipase.
$(c)$ Gastric glands of stomach mucosa have oxyntic cells/chief cells which secrete $HCl$.
$(d)$ Saliva contains enzymes that digest starch/protein.

Describe the process of digestion occurring in the large intestine.

Read the following statements thoroughly and identify whether they are true or false. Choose the right option accordingly.
$I.$ Bile is produced and stored in the liver and gall bladder,respectively.
$II.$ Common bile duct is the fusion of the right and left hepatic duct.
$III.$ Hepato-pancreatic duct opens into the proximal part of the small intestine.
$IV.$ Pancreas consists of two parts,exocrine and endocrine.
$V.$ Pepsinogen,a secretion of chief cells,is activated by hydrochloric acid.
$VI.$ Peptides are converted into dipeptides with the action of carboxypeptidase.

$A$: Gastric emptying is slowest after a fat-laden meal containing a large number of triglycerides.
$R$: Fatty acids in chyme stimulate the release of both $CCK$ and $GIP$,which slow stomach emptying.

Give scientific reasons:
$(1)$ Food tastes sweet after chewing.
$(2)$ Excretory substances are seen in bile juice.