Assertion: pH in buccal cavity is 6.8, stomach is 1.8 and duodenum is 7.8
pH is maintained by HCl in all the places.
A. If both assertion and reason are true and the reason is a correct explanation of the assertion.
B. If both assertion and reason are true but the reason is not a correct explanation of the assertion.
C. If assertion is true but reason is false
D. If both the assertion and reason are false.
