Madden Corporation manufactures t- shirts, which is its only product. The standards for t-shirts are as follows: During the month of January, the company produced 1, 050 t- shirts. Related production data for the month follows: What is the direct labor efficiency variance for the month? A. $1, 520 unfavorable B. $1, 420 unfavorable C. $1, 420 favorable D. $1, 520 favorable