Under the Open Fields Doctrine,an Officer Without a Warrant

Under the open fields doctrine,an officer without a warrant

A) may trespass onto open land to search for and seize evidence.
B) may not trespass onto open land to search for and seize evidence if the land is posted.
C) may trespass onto the land to search for and seize evidence only if the land is not posted.
D) may not trespass onto the land of a person without probable cause.