Correct Answer: Proteins

Solution : The correct answer is proteins.

Liver is the largest gland of human body. It secretes bile juices which helps in emulsification of fats. Bile juice contains bile pigments and salts. Bilirubin and Biliverdin are two bile pigments. It breaks bigger fat molecules into smaller fat molecules by which it gets easier to digest. Liver contains proteins and all the essential amino acids required for the functioning of human body.