Which of the following is NOT a characteristic of the burglaries mentioned？A．They are not

Which of the following is NOT a characteristic of the burglaries mentioned？

A．They are not serious ones.

B．They are committed by young people.

C．They are the most common form. of crimes in the area.

D．The burglars generally have some record in the past.

请帮忙给出正确答案和分析，谢谢！