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': 'Deltoid muscle causes all except - \nSelect and explain. \nA. Flexionofshoulder, B. Extension of shoulder, C. Internal rotation ofshoulder, D. Adduction of shoulder', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is'd'i.e., Adduction of shoulder Action of deltoidAnterior (clavicular) fibres : Flexion and internal (medial) rotation of shoulder.Middle (acromial)fibres : Abduction of shoulder.Posterior fibres : Extension and lateral rotation of shoulder", 'role': 'assistant'}]