K A favorable direct labor efficiency variance and an unfavorable direct labor rate variance might indicate which of the followin OA. Unskilled workers using less actual hours than standard, paid a lesser rate per hour than the standard rate OB. Skilled workers using more actual hours than standard, paid at a higher rate per hour than the standard rate C. Skilled workers using less actual hours than standard, paid at a higher rate per hour than the standard rate D. Unskilled workers using more actual hours than standard, paid at a higher rate per hour than the standard rate