Which of the following describes an activity of B cells?

A. The thymus gland is involved in the maturation of T-cells, a type of white blood cell, but it does not remove worn-out blood cells or serve as a blood reservoir.
B. The liver has various functions, including detoxification, protein synthesis, and storage of glycogen, but it is not the primary organ for removing worn-out blood cells or serving as a blood reservoir.
C. The spleen is a large lymphatic organ that filters blood, removes worn-out blood cells, and serves as a reservoir for blood. It also plays a role in immune function by filtering pathogens from the blood.
D. Interstitial spaces refer to the fluid-filled spaces between cells in tissues and are not an organ involved in blood cell removal or storage.

A. Carotid veins are not the primary veins for receiving lymph from lymphatic vessels. Carotid veins are associated with the head and neck, but they are not the main vessels where lymph drains.
B. Subclavian veins are the correct answer. The lymphatic system drains lymph into the subclavian veins at the junction of the internal jugular vein, where the lymphatic ducts (such as the thoracic duct and right lymphatic duct) empty into the bloodstream.
C. Brachial veins are associated with the upper arm and do not receive lymph from the terminal lymphatic vessels.
D. Pulmonary veins are responsible for carrying oxygenated blood from the lungs to the heart, not lymph.