When preparing a bid for a public works highway striping contract, how should a C-32 contractor account for the quantity of glass retroreflective beads?

1. Calculate glass beads as 1.0 pound per gallon of waterborne paint.
2. Calculate glass beads as 3.0 pounds per gallon of waterborne paint.
3. Calculate glass beads as 4.5 pounds per gallon of waterborne paint.
4. Calculate glass beads as 6.0 pounds per gallon of waterborne paint.