AK London Corporation's direct labour costs and related information for the month of April were as follows: Actual total direct labour-hours Standard total direct labour-hours Total direct labour cost Unfavourable direct labour price (rate) variance What is A.K. London Corporation's direct labour quantity (efficiency) variance? 1,200 1,000 $10,440 $1,500 O A. $1,838 favourable O B. $1,490 unfavourable OC. $1,490 favourable OD. $1,838 unfavourable An unfavourable direct materials efficiency variance and a favourable direct materials price variance might indicate which of the following? O A. More expensive, superior materials requiring less than the standard amount were used in production O B. More expensive, superior materials requiring more than the standard amount were used in production O C. Less expensive, inferior materials requiring less than the standard amount were used in production OD. Less expensive, inferior materials requiring more than the standard amount were used in production