Which expression can be used to represent the volume of this prism?

2 × 5 × 8 units³

3 × 8 × 10 units³

3 × 5 × 8 units³

2 × 5 × 5 units³
A rectangular prism made up of unit cubes. There are 5 layers, and each layer is 8 units long and 2 units wide.