Given standard time per unit is 80 hours, standard time per hour @ Rs 1 per hour, actual time per unit is 90 hours and actual rate per hour @ Rs 1.10 per hour. Determine labour cost variance, labour rate variance and labour efficiency variance.

• A. Rs 11, Rs 22 and Rs 10 all unfavorable
• B. Rs 19, Rs 9 and Rs 10 all favorable
• C. Rs 19, Rs 9 and Rs 10 all unfavorable
• D. Rs 11, Rs 22 and Rs 10 all favorable