Final answer:
The correct option is 2. Increasing the Field of View (FOV) will increase the coverage area as it allows a wider expanse to be observed by the optical device in question.
Step-by-step explanation:
The term FOV stands for 'Field of View' and it refers to the extent of the observable world that can be seen at any given moment. In the context of a question related to coverage area, increasing the FOV will increase the coverage area.
Essentially, the larger the field of view, the more area you can see, whether we are talking about a camera lens, a pair of binoculars, or any other optical system. An increased FOV means that a wider expanse can be observed, covering a greater area within the limits of what the optical device can display or capture.