Reference: 11-12
the Following Standards for Variable Manufacturing Overhead Have

Reference: 11-12
The following standards for variable manufacturing overhead have been established for a company that makes only one product: $$\begin{array}{l}\begin{array} { | l | l | l | } \hline \text { Standard hours per unit of output } & 1.6 & \text { hours } \\\hline \text { Standard variable overhead rate } & \$ 11.55 & \text { per hour } \\\hline\end{array}\\\text { The following data pertain to operations for the last month: }\\\begin{array} { | l | l | l | } \hline \text { Actual hours } & 4,900 & \text { hours } \\\hline \text { Actual total variable overhead cost } & \$ 58,310 & \\\hline \text { Actual output } & 3,000 & \text { units } \\\hline\end{array}\end{array}$$
-What is the variable overhead efficiency variance for the month?

A) $1,190 F.
B) $1,190 U.
C) $1,155 U.
D) $1,680 U.