The following data relate to product no. 33 of Volusia Corporation: Direct labor standard: 6 hours at $14 per hour Direct labor used in production: 50,000 hours at a cost of $710,000 Manufacturing activity: 8,300 units completed The direct-labor rate variance is: Multiple Choice O O None of the answers is correct. $9,960 U. $10,000 U. $9,960 F. $10,000 F