?An Officer May Enter and Search the Backyard of a Multiple-Occupancy

Multiple Choice

?An officer may enter and search the backyard of a multiple-occupancy dwelling without a warrant under the open fields doctrine if the backyard

A) is used by several members of a family.
B) does not have a sight-obstructing fence.
C) is used for illegal activity.
D) was open to use by any passerby.