The Geurtz Company uses standard costing. The company makes and sells a single product called a Roff. The following data are for the month of August:

Actual cost of direct material purchased and used: $88,400
Material price variance: $3,400 unfavorable
Total materials variance: $23,900 unfavorable
Standard cost per pound of material: $5
Standard cost per direct labor hour: $5
Actual direct labor hours: 8,100 hours
Labor efficiency variance: $2,500 favorable
Standard number of direct labor hours per unit of Roff: 2 hours
Total labor variance: $1,550 unfavorable

The total number of units of Roff produced during August was:

1 .3,800

2. 4,300

3. 4,100

4. 4,050