The following information was gathered for the Greensprings Corporation for the most recent year. Manufacturing overhead is allocated using machine hours. Actual machine hours 143,000 Allocated manufacturing overhead $1,128,000 Estimated manufacturing overhead costs $1,054,000 Actual manufacturing overhead costs $1,146,000 By how much is manufacturing overhead over or underallocated? O A $18,000 underallocated B. $92,000 overallocated OC. $92,000 underallocated D. $18,000 overallocated