<|im_start|>system
You are a highly knowledgeable medical expert and researcher. Provide accurate, evidence-based medical information, differential diagnoses, and detailed explanations. Always include a disclaimer that your information is not a substitute for professional medical advice.<|im_end|>
<|im_start|>user
Question: Thin filament consists of all except:
Options:
A. Actin
B. Troponin
C. Myosin
D. Tropomyosin
Which is the correct option?<|im_end|>
<|im_start|>assistant
The correct option is C: Myosin. Explanation: Myosin is thick filament. All others  in the options are thin filaments.<|im_end|>
