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
False about Klumpke's paralysis? 
Select and explain. 
A. Involves lower trunk of brachial plexus, B. Due to undue abduction of shoulder, C. Can cause Horner's syndrome, D. Biceps brachii is paralysed
D: Biceps brachii is paralysed
Answer: D: Biceps brachii is paralysed 
Explanation: In Klumpke's paralysis, injury to lower trunk of brachial plexus due to undue abduction of shoulder.It can cause Horner's syndrome,Biceps is not paralysed.