29 Reema Inc is a paint factory. Standard material per can of paint are 2 gallons at $4 per gallon. In March, 11,200 gallons of direct materials costing $42,400 were used to produce 6,000 units of paint cans. What is the direct materials quantity variance for March? ed out of n Select one: O a. $5,600 unfavorable. O b..$3,200 favorable. O c. $2,400 favorable. O d. $3,200 unfavorable