How does atrial natriuretic peptide (ANP) contribute to a decrease in blood volume and systemic blood pressure?
A) ANP dilates the afferent arteriole and constricts the efferent arteriole.
B) ANP constricts both the afferent and efferent arterioles.
C) ANP constricts the afferent arteriole and dilates the efferent arteriole.
D) ANP dilates both the afferent and efferent arterioles.
Answer: A
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