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: ENT
True about bell's palsy is/are -a) Most common cause of facial palsyb) Associated with tinnitus & vertigoc) Crocodile tears & synkinesisd) No role of steroids 
Select and explain. 
A. a, B. bc, C. ad, D. ac
D: ac
Answer: D: ac 
Explanation: Bell's palsy is the most common cause of facial palsy.
Synkinesis and crocodile tear are sequelae of Bell's palsy.