Assertion: Mucosal epithelium of gut has goblet cells which secrete mucus.
Reason: The mucus in the gastric and pancreatic juice protects the mucosa from excoriation by acidic secretion.
A. If both assertion and reason are true and reason is the correct explantion of assertion
B. If both assertion and reason are true but reason is not the correct explnantion of assertion.
C. If assertion is true but reason is false.
D. If both assertion and reason are false.