Answer:
d. multiplying units to be produced by direct materials per unit.
Step-by-step explanation:
To determine the total direct material, key parameters required are the direct material cost per unit and the number of units to be produced. The product of these two parameters gives the direct material cost required for production.
For example, if there are 10 units of an item to be produced and the direct material cost per unit is $4, the direct material cost needed for production is $40 derived from the product of the number of units and the direct material cost per unit.
Therefore, the right option is d. multiplying units to be produced by direct materials per unit.