When estimating asphalt sealcoat material for a 45,000-square-foot parking lot requiring two coats of asphalt emulsion sealer applied at 0.10 gallons per square yard per coat, how many gallons of undiluted sealer are needed?

1. Exactly 1,000 gallons of undiluted asphalt sealer.
2. Exactly 1,250 gallons of undiluted asphalt sealer.
3. Exactly 1,500 gallons of undiluted asphalt sealer.
4. Exactly 2,000 gallons of undiluted asphalt sealer.