This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
"Anhedonia" means 
Select and explain. 
A. Lack of interest, B. Panic attacks, C. Phobic attack, D. Mood swings
A: Lack of interest
Answer: A: Lack of interest 
Explanation: Defined as the inability to experience pleasure from activities usually found enjoyableAnhedonia can be characteristic of:Mood disordersSchizoaffective disorderBorderline personality disorderSchizoid personality disorderSchizophreniaRef: Ahuja 5/e p56, 58