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: Anatomy
[{'content': 'Muscle acting both at knee and ankle joint is/are-a) Gastrocnemiusb) Soleusc) Plantarisd) Tibialis posteriore) Flexor hallucis longus \nSelect and explain. \nA. a, B. bc, C. ac, D. b', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Muscles acting on both hip and knee\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Rectus femoris\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Sartorius\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Tensor fascia lata\nMuscles acting on both knee and ankle\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Gastrocnemius\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Plantaris\nMuscles acting on both ankle and toes\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Extensor hallucis longus\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Extensor digitorum longus\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Flexor hallucis longus\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Flexor digitorum longus', 'role': 'assistant'}]