E) A, B and Care all true with regard w Uvelli 3. Ridley Company estimates that overhead costs for the next year will be $6,870,000 for indirect labor and $450,000 for factory utilities. The company uses machine hours as its overhead allocation base. If 160,000 machine hours are planned for this next year, what is the company's plantwide overhead rate? A) $.02186 per machine hour. B) $42.9375 per machine hour. C) $45.75 per machine hour. D) $2.8125 per machine hour. E) $.3555 per machine hour