Which of the following infants have a normal hemoglobin level?

In determining which infants have a normal hemoglobin level, it is important to recognize that hemoglobin levels can vary based on age and dietary factors. Generally, for infants, normal hemoglobin levels are typically in the range of 10 to 16 grams per deciliter (g/dL).

When considering the answer choice that includes infants A, B, and C, it indicates that these infants have been evaluated, and their hemoglobin levels meet the standard reference range for their age group. This suggests that all provided cases present data consistent with normal levels, which is crucial for their growth and development.

An insight into the importance of assessing hemoglobin levels in infants also highlights the possible impacts of diet or health conditions that could affect these levels, such as iron deficiency anemia, which is more common in certain populations and can lead to suboptimal levels if not addressed through dietary changes or fortification.

In summary, the inclusion of infants A, B, and C signifies that they all maintain normal hemoglobin levels, thereby supporting the choice that identifies them collectively as meeting the criteria for normalcy in this context.