Combine your understanding of the Bohr effect and hemoglobin's function to predict how a sudden increase in CO2 concentration in the blood would affect oxygen delivery to tissues.

• A. A sudden increase in CO2 concentration would have no effect on hemoglobin's oxygen delivery to tissues.
• B. A sudden increase in CO2 concentration would decrease hemoglobin's oxygen affinity, enhancing oxygen delivery to tissues.
• C. A sudden increase in CO2 concentration would increase hemoglobin's oxygen affinity, reducing oxygen delivery to tissues.
• D. A sudden increase in CO2 concentration would decrease hemoglobin's oxygen affinity, reducing oxygen delivery to tissues.

Answer: (B)