Tower Company planned to produce 3000 units of its singleproduct Tiactium during November. The standards for one unit ofTiactium specify six pounds of materials at $0.30 per pound. Actualproduction in November was 3100 units of Tiactium. There was anunfavorable materials price variance of $380 and a favorablematerials quantity variance of $120. Based on these variances onecould conclude that:Choose one answer.a. the actual cost per pound for materials was less than thestandard cost per pound.b. more materials were used than were purchased.c. the actual usage of materials was less than the standardallowed.d. more materials were purchased than were used.