This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: JIPMER 2018, Subject name: Psychiatry
Biological marker for antisocial behavior in boys:- 
Select and explain. 
A. Low serum testosterone, B. Low resting pulse rate, C. Increased urinary dopamine levels, D. Shoened REM latency
B: Low resting pulse rate
Answer: B: Low resting pulse rate 
Explanation: Low hea rate have association with antisocial behavior