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: Psychiatry
Drugs used for recurrent depressive episodes -a) Imipramineb) Carbamazepine c) Fluoxetined) Na valproate 
Select and explain. 
A. a, B. bc, C. ac, D. b
C: ac
Answer: C: ac 
Explanation: Amongst the given options, Imipramine and Fluoxetine are antidepressants.
Carbamazepine and Valproate are used for prophylaxis of BPD (not for recurrent unipolar depression).