This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Physiology
Albumin exeing high oncotic pressure because 
Select and explain. 
A. High molecular weight and low concentration, B. Low molecular weight and high concentration*, C. High molecular weight and high concentration, D. Low molecular weight and low concentration
B: Low molecular weight and high concentration*
Answer: B: Low molecular weight and high concentration* 
Explanation: Albumin (69000)molecular weight is less compared to globulin(90000-150000) and fibrinogen (340000).80%of osmotic pressure of blood is exeed by albumin since it has highest concentration. Ref: Textbook of medical physiology by N Geetha, 2nd edition, page no. 67