Stones Inc. purchased and used 129,000 pounds of Zenon in production, at a total cost of $1,548,000. Original production had been budgeted for 22,000 units with a standard material quantity of 5.7 pounds per unit and a standard price of $12 per pound. Actual production was 23,500 units. The direct materials cost variance is Select one: O a. $59,400 favorable b. $59,400 favorable c. $6,000 unfavorable O d. $59,400 unfavorable e. $59,400 unfavorable O f. $6,000 favorable g. $63,000 unfavorable h. None of the above i. $0 j. $63,000 favorable o