Which does the work of the immune system? a. enzymes b. hormones c. lymphocytes d. neurons

C.Lymphocytes

Reasoning: Lymphocytes- a group of small white blood cell with a single round nucleus.

The definition of the word should tell it, referring to the fact white blood cells are the key to the immune system.

not sure if this is what you'r looking for eubacteria and archaebacteria