. Oaklis Company has provided the data shown for maintenance cost. Maintenance cost is a mixed cost with variable and fixed components. The fixed and variable components of maintenance cost are closest to what amounts? A. $6,000 per year; $1.80 per machine hour B. $6,000 per year; $2.30 per machine hour C. $24,000 per year; $1.80 per machine hour D. $24,000 per year; $2.30 per machine hour