What are the primary components of the protective function of lymph?

The primary components of the protective function of lymph include antibodies, which play a crucial role in the immune response. Antibodies are proteins produced by B cells in response to specific antigens, such as pathogens or foreign substances in the body. When lymph circulates, it carries these antibodies, enabling the immune system to identify and neutralize harmful invaders. This is vital for maintaining health, as the presence of antibodies in lymph effectively aids in the defense against infections and diseases.

The other options do not directly relate to the protective function of lymph. Nutrients are more related to providing energy and supporting overall bodily functions rather than immunity. Vaccination is a process that helps prepare the immune system to fight infections but is not a component of lymph itself. Cellular repair pertains to the healing and recovery processes within the body, rather than the protective roles that lymph primarily serves. Therefore, antibodies clearly stand out as the primary component associated with the protective function of lymph.