Explanation:

- Option 1: 2.0 V

- This voltage is not typical for standard AA batteries used in most household gadgets.

- Option 2: 1.5 V

- This is the standard voltage for most AA batteries. They are commonly used in home gadgets like remote controls and small toys.

- AA batteries are usually alkaline or zinc-carbon, both of which typically provide 1.5 volts.

- Option 3: 3.0 V

- This option is higher than the usual voltage for AA batteries. Some specialty batteries (like lithium) might provide this, but they aren’t standard AA.

- Option 4: 2.5 V

- This is not a typical voltage for AA batteries, which are almost always 1.5 volts.