How does breast milk benefit infants?

Breast milk provides antibodies to fight diseases, which is one of its most significant benefits for infants. It contains a variety of immune-boosting compounds such as immunoglobulins, particularly immunoglobulin A (IgA), which can help protect infants from infections and illnesses by forming a protective layer in the gut and mucosal surfaces. This is crucial during the early months of life when an infant's immune system is still developing and not fully capable of defending against pathogens. By being exposed to these antibodies through breast milk, infants enhance their immune responses and are more likely to overcome infections effectively.

The other options focus on aspects of development that are not directly linked to the nutritional and immunological benefits of breast milk. While gross motor skills, binocular vision, and sleep patterns are important areas of infant development, they are influenced by a range of factors, including physical activity, environmental stimulation, and genetics, rather than the direct antibody protection offered by breast milk. Therefore, when considering the primary benefits of breast milk, the provision of antibodies stands out as a critical feature that supports an infant's health and overall well-being.