(A Company has a standard of 1 direct labor hour per unit at Rs.12 per hour. 3,850 labor hours costing Rs.46,970 were used to produce 4,000 units.)Company’s labor quantity variance is

• A. Rs.1,830 unfavourable
• B. Rs.1,830 favourable
• C. Rs.1,800 favourable
• D. Rs.1,800 unfavourable