Which one of the following pairs of the kind of cells and their secretion are correctly matched?

Which is the largest gland of the human body?

In rabbit,the colour of bile juice is:

Study thoroughly the following statements and identify which of the following is/are correct and incorrect?
$I.$ Bile salt present in bile is responsible for emulsifying the fats in the small intestine.
$II.$ Sodium and potassium salts of glycocholic and taurocholic acid are bile salts.
$III.$ The $pH$ of hepatic bile is $8.6$,while the $pH$ of gall bladder bile is $7.6$ or $7.5$.
$IV.$ The flow of bile from the liver takes place through the hepatic duct,common bile duct,hepatopancreatic ampulla,and finally to the first part of the small intestine.
$V.$ Rats and horses do not require a gall bladder to store bile.
Choose the correct option.

The enzyme $Rennin$ is secreted by:

Which gland is the largest gland in the human body?