The ABC Company required 10,000 direct labor hours in production. The standard allowed for 9,000 hours at a pay rate of $18 per hour. If the company had an unfavorable direct labor rate variance of $6,000 that was largely caused by scheduling high skill-level worksers to perform low-skill level activities, who would most likely be held accountable for the variance?

A. the production department manager

B.the purchasing department manager

C. the personnel department manager

D. the sales manager