This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hand, Subject name: Anatomy
[{'content': '1st extensor compartment of wrist contains - \nSelect and explain. \nA. EPL, B. EPB, C. ECRL, D. ECRB', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., EPB CompartentContentsIAbductor pollicis longus, extensor pollicis brevisIIExtensor carpi radialis longus and brevisIIIExtensor pollicis longusIVExtensor digitorum, extensor indicis, posterior interosseus nerve, anterior interosseus arteryVExtensor digiti minimiVIExtensor carpi ulnaris", 'role': 'assistant'}]