Harrangue Company's standard variable overhead rate is $6 per direct labor hour, and each unit requires 2 standard direct labor hours. During March, Harry recorded 6,000 actual direct labor hours, $37,000 actual variable overhead costs, and 2,900 units of product manufactured. What is the total variable overhead variance for March for Harrangue?

a.$1,000 (U)

b.$600 (U)

c.$1,200 (U)

d.$2,200 (U)