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