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
NOT a hybrid muscle among the following is 
Select and explain. 
A. Brachialis, B. Flexor pollicis brevis, C. Sternocleidomastoid, D. Adductor pollicis
D: Adductor pollicis
Answer: D: Adductor pollicis 
Explanation: Nerve supply of above muscles-
Brachialis

Musculocutaneous Nerve and Radial nerve (proprioception)

Flexor pollicis brevis

Superficial head by Median Nerve
Deep head by Ulnar nerve

Sternocleidomastoid

Spinal accessory nerve and C3 , C4

Adductor pollicis

Ulnar nerve