Ravena Labs., Inc. makes a single product which has the following standards:

Direct materials: 2.5 ounces at $20 per ounce

Direct labor: 1.4 hours at $12.50 per hour

Variable manufacturing overhead: 1.4 hours at 3.50 per hour

Variable manufacturing overhead is applied on the basis of standard direct labor-hours. The following data are available for October:

3,750 units of compound were produced during the month.

There was no beginning direct materials inventory.

Direct materials purchased: 12,000 ounces for $225,000.

The ending direct materials inventory was 2,000 ounces.

Direct labor-hours worked: 5,600 hours at a cost of $67,200.

Variable manufacturing overhead costs incurred amounted to $18,200.

Variable manufacturing overhead applied to products: $18,375.

5. The variable overhead efficiency variance for October is:

A) $1,400 Favorable

B) $1,225 Unfavorable

C) $1,900 Unfavorable

D) $2,700 Favorable