Adams Manufacturing allocates overhead to production on the basis of direct labor costs. At the beginning of the year, Adams estimated total overhead of $433,200; materials of $418,000 and direct labor of $228,000. During the year Adams incurred $457,200 in materials costs, $451,600 in overhead costs and $232,000 in direct labor costs. Compute the amount of under- or overapplied overhead for the year.
a. $10,800 overapplied.
b. $18,400 overapplied.
c. $10,800 underapplied.
d. $18,400 underapplied.