Answer:
Close to the cost of goods sold
Step-by-step explanation:
Since in the question it is mentioned that the simply found that the overhead was underapplied by $2,500 that means the expected overhead is less than the actual one
So the same is to close to the cost of goods sold account i.e. expenses account
Therefore the simply should close the $2,500 of underapplied overhead to the cost of goods sold