Russell Manufacturing makes a product that uses a material with the following standards: Standard quantity... Standard price... Standard cost... 3.0 kilos per unit $2.00 per kilo $6.00 per unit The company budgeted for production of 1,300 units in April, but actual production was 1,200 units. The company used 3,750 kilos of direc material to produce this output. The company purchased 4,700 kilos of the direct material at a total cost of $7,800 The direct materials purchases variance is computed when the materials are purchased. The materials price variance for April is: O a. $-1,600.00 O b. $-1,276.60 O c. $-20,400.00 O d. $-6,300.00