Final answer:
c) sight
The plain view doctrine requires officers to gain awareness of an item solely through sight in order to meet its requirements.
Step-by-step explanation:
The correct answer is c) sight. In order to meet the requirements of the plain view doctrine, the officer must have gained awareness of an item solely through sight.
The plain view doctrine allows law enforcement officers to seize evidence without a warrant if they come across it in plain view during a lawful search or observation.
The officer must have a legitimate right to be in the place where the item is discovered and the incriminating nature of the item must be immediately apparent.