Which one of the following is TRUE regarding the spleen?

A) It is located in the lower portion of the thoracic cavity.
B) Red pulp of the spleen stores excess blood.
C) White pulp of the spleen contains macrophages that kill microorganisms circulating in the lymph.
D) Red pulp of the spleen contains primarily lymphocytes.
E) The spleen has the same functions as the tonsils.