Hayden allocates (applies) overhead based on machine hours. Selected data for the most recent year follow. Estimated manufacturing overhead cost Actual manufacturing overhead cost Estimated machine hours Actual machine hours $300,000 $290,000 20,000 $2,000 The estimates were made as of the beginning of the year, while the actual results were for the entire year. The manufacturing overhead for the year would have been O $40,000 overallocated (overapplied), o $10,000 overallocated (overapplied) O S40,000 underallocated (underapplied) O More information is needed in order to answer the question O $10,000 underallocated (underapplied)