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
Chromosome-associated with bipolar disease - 
Select and explain. 
A. Chromosome 16, B. Chromosome 13, C. Chromosome 18, D. Chromosome 11
C: Chromosome 18
Answer: C: Chromosome 18 
Explanation: Chromosomes involved in bipolar disorder are chromosome 18, 21, and 22.