Select the option that correctly identifies A, B, C and D.
A - The cells of areolar tissue that produce antibodies.
B - The dense regular connective tissue that connects bone to bone.
C - The structural unit of mammalian long bone.
D - The enucleated cells in human body.
A | B | C | D |
Plasma cells | Ligament | Haversian system | Erythrocytes |