This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
Gamma globulin are synthesized in ? 
Select and explain. 
A. Liver, B. Spleen, C. Kidney, D. Plasma cells
D: Plasma cells
Answer: D: Plasma cells 
Explanation: Ans. is 'd' i.e., Plasma cellsLiver synthesizes most of the proteins of body except immunoglobulins (gamma globulins), which are synthesized by plasma cells.