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
[{'content': 'Substance present in both serum and plasma:September 2007 \nSelect and explain. \nA. Fibrinogen, B. Factor II, C. Factor VII, D. Factor V', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C: Factor VIISerum has essentially the same composition as that of plasma except that its fibrinogen and clotting factors II,V and VIII has been removed and it has a higher seroton in content.', 'role': 'assistant'}]