A contractor needs to apply traffic paint to stripe 8,000 linear feet of 4-inch-wide parking stall lines. If one gallon of paint covers 320 linear feet of 4-inch line at 15 mils wet thickness, how many gallons of paint are required?

1. Exactly 15.0 gallons of traffic paint for the project.
2. Exactly 20.0 gallons of traffic paint for the project.
3. Exactly 22.5 gallons of traffic paint for the project.
4. Exactly 25.0 gallons of traffic paint for the project.