Lymph is a light clear fluid made up of white blood cells that attack harmful ______ in the blood.

bacteria

The correct answer is Option (4) -bacteria

Lymph is a light clear fluid made up of white blood cells that attack harmful: Bacteria

Lymph contains various types of white blood cells, including lymphocytes, which play a crucial role in the immune system's defense against pathogens such as bacteria. When bacteria enter the body, lymphocytes recognize and attack them, helping to eliminate the infection and protect the body from illness. Therefore, lymph serves as a key component of the body's immune response against bacterial pathogens.