She went out with the door unlocked by _ although she knew early that it would result in t

问题补充：

She went out with the door unlocked by _ although she knew early that it would result in theft.

A. accident

B. intention

C. chance

D. purpose

答案：

A. accident

(答案→)B. intention

C. chance

D. purpose

解析：介词短语辨析。By accident/chance偶然；by intention故意地；句意：尽管她找到这会导致偷窃行为，她还是故意留着门没有锁就外出了。根据句意说明B正确。