A paint mixer wants to mix paint that is 40% gloss with paint that is 25% gloss to make 5.25 gallons of paint that is 30% gloss. How many gallons of each paint should the paint mixer mix together?

a) 2.5 gallons of 40% gloss paint, 2.75 gallons of 25% gloss paint
b) 3 gallons of 40% gloss paint, 2.25 gallons of 25% gloss paint
c) 2 gallons of 40% gloss paint, 3.25 gallons of 25% gloss paint
d) 2.75 gallons of 40% gloss paint, 2.5 gallons of 25% gloss paint