How does hemoglobin F facilitate the transfer of oxygen from mother to fetus during pregnancy?

A By having a lower affinity for oxygen than adult hemoglobin
B By having a higher affinity for oxygen than adult hemoglobin ✓
C By being more resistant to oxidative stress than adult hemoglobin
D By having a faster rate of oxygen binding and release than adult hemoglobin

Explanation

Hemoglobin F has a higher affinity for oxygen than adult hemoglobin, which allows it to effectively extract oxygen from the mother's bloodstream and transfer it to the fetus, ensuring adequate oxygenation of fetal tissues.

Source

Guyton and Hall (2016) Textbook of Medical Physiology
Hematology Hematology: Hemoglobin and Oxygen Transport Hematology: Hemoglobin and Oxygen Transport Medium MEDICAL Confidence: high