The parts of the lymphatic system include the:

1 . spleen
2 . thymus gland
3 . lymph
4 . lymph nodes
a. 1, 2, 3, 4
b. 2, 3, 4
c. 3, 4
d. 3 only

a
RATIONALE: The lymphatic system consists of the spleen, thymus gland, lymph, and lymph nodes.