The labor efficiency variance mainly focuses on the quality of labor hour in the process of production. The labor efficiency variance is generally the responsibility of the production manager. Option A is correct.
A Production Manager is a specialist who supervises the manufacturing process and coordinates all activities to ensure adequate resources are available.
To guarantee that workflow meets specified deadlines, they might arrange workers' schedules, estimate expenditures, and establish budgets.
Direct labor efficiency variance is usually the responsibility of the production department. Other factors, however, may have an impact on the variance.
Therefore, option A is correct.
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