Use this information to answer the question that follow. The following data relate to direct materials costs for February: Materials cost per yard: standard, $1.99; actual, $2.05 Standard yards per unit: standard, 4.73 yards; actual, 5.27 yards Units of production: 9,200 Calculate the direct materials quantity variance. a. $9,886.32 unfavorable Ob. $10,184.40 unfavorable c. $9,886.32 favorable d. $10,184.40 favorable