What role do lymphocytes play in a newborn's immune response?

Lymphocytes, particularly B cells and T cells, play a crucial role in the newborn's immune response by being responsible for specific antibody production. B lymphocytes are a type of white blood cell that recognize antigens, such as pathogens, and produce antibodies that specifically target those pathogens. This process is fundamental in providing immunity against infections that the newborn may encounter after birth.

In the context of a newborn, lymphocytes are still developing their full functionality, but they are key components in the adaptive immune system. Once exposed to an antigen, B cells can differentiate into plasma cells that secrete antibodies, marking a targeted response against invaders. The importance of this process cannot be overstated, as it helps establish long-term immunity and plays a critical role in preventing and fighting infections during a vulnerable phase of life.

The other options, while they involve important physiological functions, do not accurately describe the role of lymphocytes in connection with immune response in newborns.