Dixon & Company manufactures Part A and uses standard costs to prepare its flexible budget. For the first quarter of the year, direct materia and direct labor standards for Part A were as follows: Direct materials: 5 pounds per unit; $4 per pound Direct labor: 3 hours per unit; $18 per hour During the first quarter, Dixon produced 4,000 units of this product. Actual direct materials and direct labor costs were $61,000 and $260,000 respectively. For the purpose of preparing the flexible budget, calculate the total standard direct materials cost at a production volume of 4,000 units. A. $20,000 B. $288,000 C. $80,000 D. $16,000