Madrid Co. has a direct labor standard of 4 hours per unit of output. Each employee has a standard wage rate of $11.00 per hour. During February, Madrid Co. paid $99,500 to employees for 9,200 hours worked. 2,430 units were produced during February. What is the direct labor efficiency variance?

a- $1,700 favorable

b- $5,720 favorable

c- $852 favorable

d- $7,420 favorable