The suppression of acid secretion is greater with a proton pump inhibitor than with an H2-receptor antagonist because:
A. unlike an H2-receptor antagonist, a proton pump inhibitor increases the volume and strength of acid secretion.
B. unlike an H2-receptor antagonist, a proton pump inhibitor blocks the release of histamine from parietal cells.
C. unlike an H2-receptor antagonist, a proton pump inhibitor blocks the secretion of HCl.
D. unlike an H2-receptor antagonist, a proton pump inhibitor stimulates H1-receptors.
Answer: C
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