This question has two parts $(4$ points per part$).$ Alberts Credit Agency uses a standard cost system for the processing of its credit applications. Before the beginning of the last pay period, Alberts estimated it would process $2,500$ applications. The labor standard at Alberts is $0\mathrm{.}8$ hours per application at a standard cost of $$15$ per hour. During the last pay period, the company credit agents worked $1,920$ hours, processed $2,600$ applications, and were paid $$29,184.$

Part $1.$ What was the labor rate variance for the last pay period?

a$.$ $$384F.$

b$.$ $$384U.$

c$.$ $$2,016F,$

d$.$ $$2,016U.$

e$.$ $$2,400F.$

f$.$ $$2,400U.$

Part $2.$ What was the labor efficiency variance for the last pay period?

a$.$ $$384F,$

b$.$ $$384U.$

c$.$ $$2,016F.$

d$.$ $$2,016U.$

e$.$ $$2,400F.$

f$.$ $$2,400U.$