Dreary Credit Agency uses a standard cost system for the processing of its credit applications. The. labor standard at Dreary is 10 applications per 8 hour day at a standard cost of $15 per hour. During the last pay period. Dreary's credit agents worked 1.920 hours and processed 2,500 applications. The total labor cost for the agents during this period was $29,184. What was Drear}-: labor efficiency variance for this last pay period? A. $384 Unfavorable B. $816 Favorable . $1, 200 Favorable D. $1,500 Favorable