Sebastian is a mechanic who works at a local auto body shop. When he learns that one of his customers, Laura, is out of town for a week, he decides to break into Laura$$s house. After disabling the security system, he goes through the house, taking only items that he can easily sell. Sebastian is most likely a$($n$)\_\_\_\_\_\_\_.$

A$.$

high$-$level burglar

B$.$

amateur receiver

C$.$

middle$-$range burglar

D$.$

low$-$level burglar