Cooper Corporation produces decorator wall coverings. Budgeted production is 260,000 square feet per month, and the standard direct labor requirement to make this amount is 4,000 hours. All overhead is allocated based on direct labor hours. The following information is available: Budgeted Actual Amounts Results Production in units 260,000 320,000 Total labor hours 4,000 5,000 $11,000 $13,500 Total variable overhead Total fixed overhead Total overhead $5,000 $5,500 $16,000 $19,000 (ii). The overhead volume variance for the month in question was: Select one: a. $1,250 favorable. b. $2,750 favorable. c. $2,750 unfavorable. d. $1,250 unfavorable