Mattison Company Has Developed Cost Formulas for the Drivers of the Following

Mattison Company has developed cost formulas for the drivers of the following production activities: $$\begin{array} { l l r } { \text { Driver } } & \text { Activity } & \text { Fixed }& \text { Variable } \\\hline \text { Labor hours } & \text { Materials } & \$ 0&\$20\\\text { Labor hours } & \text { Labor } & 0 &10\\\text { Machine hours } & \text { Maintenance } & 10,000&8 \\\text { Machine hours } & \text { Machining } & 50,000&2 \\\text { Number of setups } & \text { Inspections } & 30,000&200 \\\text { Number of setups } & \text { Setups } & 0 &300\\\text { Number of purchase orders } & \text { Purchasing } & 75,000&3\end{array}$$ If the actual activity was 20 setups and the actual fixed cost for inspections was $28,000 and the variable cost for inspections was $5,000, the total variance for inspections is due to

A) unfavorable variance on fixed costs.
B) favorable variance on fixed costs.
C) favorable variance on variable costs.
D) unfavorable variance on variable costs.