This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
Crocodile tears is due to 
Select and explain. 
A. Cross innervation of facial nerve fibers, B. Cross innervation of trigeminal nerve fibers, C. Improper regeneration of trigeminal nerve, D. Improper regeneration of facial nerve
D: Improper regeneration of facial nerve
Answer: D: Improper regeneration of facial nerve 
Explanation: Crocodile tears or gustatory lacrimation is due to faulty regeneration of parasympathetic nerve fibres. Ref: Dhingra 6th edition pg. 98