Perfect Pigments Has 3,500 Gallons of Paint in WIP Inventory,with

Perfect Pigments has 3,500 gallons of paint in WIP Inventory,with 80% of materials already added.What are equivalent units in ending WIP Inventory for materials if the paint is 50% through the process?

A) 2,800
B) 1,750
C) 0
D) 1,050