Villanova, Inc Following Are the Actual Costs of Producing 35,000 Rubber Stamps

Villanova, Inc., has done a cost analysis for its production of rubber stamps. The following activities and cost drivers have been developed: $\begin{array} { l l } \text { Activity } & \text { Cost Formula } \\ \text { Design } & \$ 5,000 + \$ 0.05 \text { per machine hour } \\ \text { Machining } & \$ 25,000 + \$ 0.01 \text { per machine hour } \\ \text { Setups } & \$ 35 \text { per batch } \\ \text { Purchasing } & \$ 50 + \$ 15 \text { per purchase order } \end{array}$
Following are the actual costs of producing 35,000 rubber stamps: 1,000 machine hours; 5 batches; 30 purchase orders
$\begin{array} { l r } \text { Design } & \$ 5,080 \\ \text { Machining } & ? \\ \text { Setups } & ? \\ \text { Purchasing } & \$ 600 \end{array}$
The following variances were given in the activity performance report:
$\begin{array} { l r } \text { Design } & ? \\ \text { Machining } & \$ 40 \mathrm {~F} \\ \text { Setups } & \$ 15 \mathrm {~F} \\ \text { Purchasing } & ? \end{array}$ What is the activity variance for design?

A) $40 F
B) $30 U
C) $15 F
D) $100 U