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
Damage to the structure producing the elevation marked leads to paralysis of which of the following muscle? 
Select and explain. 
A. Lateral rectus, B. Risorius, C. Levator palpebrae superioris, D. Superior oblique
B: Risorius
Answer: B: Risorius 
Explanation: Figure shows the facial colliculus formed by 7th nerve wind around the 6th nerve i.e; it damages muscles of facial expression like risorius but deep damage leads to injury of 6th nerve i.e; lateral rectus Ref: Gray's39e/p-518