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
Upper limb deformity in Erb's palsy? 
Select and explain. 
A. Adduction and lateral rotation of arm, B. Adduction and medial rotation of arm, C. Abduction and lateral rotation of arm, D. Abduction and medial rotation of arm
B: Adduction and medial rotation of arm
Answer: B: Adduction and medial rotation of arm 
Explanation: Deformity in Erb's palsy (position of the limb):Arm: Hanges by the side; it is adducted & medially rotatedForearm: Extended and pronatedThe deformity is known as 'policeman's' tip hand or 'poer's tip hand'