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: Pharmacology
Amitryptyline is a 
Select and explain. 
A. Antibiotic, B. Sedative, C. Tricyclic antidepressant, D. Diuretic
C: Tricyclic antidepressant
Answer: C: Tricyclic antidepressant 
Explanation: None