This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Blood: Hemostasis and Blood Coagulation, Subject name: Physiology
[{'content': 'Thrombosthenin is a/an \nSelect and explain. \nA. Thrombosis preventing protein, B. Contractile protein, C. Coagulation protein, D. Protein for regulating platelets production', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' is Contractile protein Thrombosthenin is a contractile protein found within platelets. It helps the platelets to contract during clot formation.Other contractile proteins found within platelets are-Actin andMyosin molecules", 'role': 'assistant'}]