Shamrock Manufacturing budgeted fixed overhead costs of $3.5 per unit at an anticipated production level of 1,150 units. In July Shamrock incurred actual fixed overhead costs of $4,600 and actually produced 1,000 units. What is Shamrock's fixed overhead budget variance for July? OA. $575 unfavorable B. $575 favorable O C. $1,100 unfavorable O D. $1,100 favorable