Radiant Systems allocates manufacturing overhead based on machine hours. Each connector should require 5 machine hours. According to the static budget, Radiant expected to incur the following: 750 machine hours per month (150 connectors x 5 machine hours per connector) $9,000 in variable manufacturing overhead costs $5,550 in fixed manufacturing overhead costs During August, Radiant actually used 600 machine hours to make 90 connectors and spent $5,700 in variable manufacturing costs and $9,100 in fixed manufacturing overhead costs. Radiant's standard variable manufacturing overhead allocation rate is O A. $19.40 per machine hour, B. $7.40 per machine hour. C. $12.00 per machine hour. D. $15.00 per machine hour