Sulema, Inc

Sulema, Inc.repairs and refinishes antique furniture.Manufacturing overhead at Sulema is applied to production on the basis of standard direct labor-hours.Which overhead variance(s) at Sulema would be unfavorably affected if a significant amount of glue is being wasted by inexperienced direct labor workers?

A) variable overhead rate variance
B) variable overhead efficiency variance
C) fixed manufacturing overhead budget variance
D) fixed manufacturing overhead volume variance