Answer :
Salivary enzymes, pepsin, and pancreatic juice are among the chemical secretions that are present as food travels through the digestive tract. Therefore, the correct option is B.
Food and liquids pass through the digestive tract's organs as they are ingested, digested, assimilated, and expelled from the body as faeces. The mouth, pharynx (throat), oesophagus, stomach, small intestine, large intestine, rectum, and anus are among these organs.
Pepsin, pancreatic juice, and salivary enzymes are a few of the chemical secretions that are produced as food passes through the digestive system.
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