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
Deltoid muscle causes all except - 
Select and explain. 
A. Flexionofshoulder, B. Extension of shoulder, C. Internal rotation ofshoulder, D. Adduction of shoulder
D: Adduction of shoulder
Answer: D: Adduction of shoulder 
Explanation: 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