Departmental overhead rates may not correctly assign overhead costs due to: Question 10 options: A) overreliance on volume as a basis for allocating overhead costs where products differ regarding the number of units produced, lot size, or complexity of production. B) the use of direct labor hours in allocating overhead costs to products rather than machine time or quantity of materials used. C) difficulties associated with identifying cost pools for the first stage of the allocation process. D) the high correlation between direct labor-hours and the incurrence of overhead costs.