Miller and Sons' static budget for 10,500 units of production includes $38,900 for direct materials, $50,000 for direct labor, variable utilities of $7,000, and supervisor salaries of $14,500. A flexible budget for 13,400 units of production would show Round your final answer to the nearest dollar. Do not round interim calculations. a. the same cost structure in total b. direct materials of $49,644, direct labor of $63,810, utilities of $8,933, and supervisor salaries of $17,400 c. direct materials of $49,644, direct labor of $63,810, utilities of $8,933, and supervisor salaries of $14,500 d. total variable costs of $110,400