The volume of the pyramid is **120 in**.
The base of the pyramid is a square with side length 8 inches. The height of the pyramid is 12 inches. The volume of a pyramid is calculated using the following formula:
```
Volume = (1/3) * Base Area * Height
```
The base area of the pyramid is 8 * 8 = 64 square inches. Plugging this value into the formula, we get:
```
Volume = (1/3) * 64 * 12 = 120 in
```
Therefore, the volume of the pyramid is 120 in.
The other answer choices are incorrect because they do not represent the volume of a pyramid with a base of 8 inches and a height of 12 inches.