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
Adduction at wrist is caused by ? 
Select and explain. 
A. Flexor carpi radialis, B. Extensor pollics longus, C. Extensor carpi ulnaris, D. Flexor digitorum profundus
C: Extensor carpi ulnaris
Answer: C: Extensor carpi ulnaris 
Explanation: Extensor carpi ulnaris