B. Macromolecules is the answer.
Answer:
The answer i B meiosis doing the test right now
Explanation:
The primary function of the lymphatic system<span> is to transport </span>lymph<span>, a fluid containing infection-fighting white blood cells, throughout the body. The </span>lymphatic system<span> primarily consists of </span>lymphatic<span> vessels, which are similar to the circulatory </span>system's<span> veins and capillaries.</span>
I believe it’s b but correct me if I’m wrong