What does the position of the fetal hemoglobin curve on the oxygen saturation graph indicate about its oxygen affinity compared to adult hemoglobin?

• A. The fetal hemoglobin curve is identical to the adult hemoglobin curve.
• B. The fetal hemoglobin curve is right-shifted, indicating lower oxygen affinity.
• C. The fetal hemoglobin curve is left-shifted, indicating higher oxygen affinity.
• D. The fetal hemoglobin curve is above the adult hemoglobin curve, indicating higher oxygen affinity.

Answer: (C)