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
The stimulant drug is given to the child for - 
Select and explain. 
A. Conduct disorder, B. Speech developmental disorder, C. Pervasive disorder, D. ADHD
D: ADHD
Answer: D: ADHD 
Explanation: Stimulants (like methylphenidate, dextroamphetamine) are the drugs of choice for ADHD.