The Clark Company Makes a Single Product and Uses Standard

The Clark Company makes a single product and uses standard costing. Some data concerning this product for the month of May follow:
$\begin{array} { | l | r | } \hline \text { Labour rate variance } & \$ 7,000 \text { favourable } \\\hline \text { Labour efficiency variance } & \$ 12,000 \text { favourable } \\\hline \text { Variable overhead efficiency variance } & \$ 4,000 \text { favourable } \\\hline \text { Number of units produced } & 10,000 \\\hline \text { Standard labour rate per direct labour hour } & \$ 12 \\\hline \text { Standard variable overhead rate per direct labour hour } & \$ 4 \\\hline \text { Actual labour hours used } & 14,000 \\\hline \text { Actual variable manufacturing overhead costs } & \$ 58,290 \\\hline\end{array}$


-What was the variable overhead spending variance for May?

A) $1,710 favourable.
B) $1,710 unfavourable.
C) $2,290 favourable.
D) $2,290 unfavourable.