On his road trip, Leon stops to refuel and get some snacks. He has the following purchases:12 gallons of gas at $2.89 per gallon2 granola bars for $1.59 each1 apple for $0.892 bottles of vitamin water for $1.39 eachLeon must pay 7.5% sales tax on everything but the gas, which already has tax included in the per gallon price. If Leon paid $44.64, then he _____ for his purchase.a.did not pay enoughb.paid the correct amountc.paid $2.60 too muchd.paid $3.11 too much