High carbon dioxide levels and low pH in blood of the carotid arteries will stimulate
A. baroreceptors to activate the vasomotor center.
B. chemoreceptors to activate the vasomotor center.
C. baroreceptors and chemoreceptors to activate the cardioinhibitory center and inhibit the vasomotor center.
D. baroreceptors to activate the cardioinhibitory center and inhibit the cardioacceleratory center.
E. chemoreceptors to inhibit the vasomotor center.
Answer: B
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