This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Brain , Subject name: Anatomy
The trapezoid body is concerned with 
Select and explain. 
A. Pain and temperature, B. Hearing, C. Touch and pressure, D. Proprioception
B: Hearing
Answer: B: Hearing 
Explanation: Trapezoid body is a trapezium-shaped mass of white matter lying in the anterior pa of tegmentum, posterior to basilar pa of pons.It is formed by decussation of transversely running fibres arising from cochlear nuclei of both sides before it reaches the superior olivary nucleus. This decussation is believed to help in localization of sound.(Ref: Vishram Singh textbook of clinical neuroanatomy second edition pg 80)