Cooper's Bags Company manufactures cloth grocery bags to be sold to grocery stores and other retailers. Cooper's Bag Company sells the bags in cases of 1,000 bags. The bags come in three sizes: Large, Medium, and Small. Currently, Cooper's Bags Company uses a single plantwide overhead rate to allocate its $8,088,000 of annual manufacturing overhead. Of this amount, $2,210,000 is associated with the Large Bag line, $3,418,800 is associated with the Medium Bag line, and $2,459,000 is associated with the Small Bag line. Cooper's Bags Company is currently running a total of 40,000 machine hours: 13,000 in the Large Bag line, 15,400 in the Medium Bag line, and 11,600 in the Small Bag line. Cooper's uses machine hours as the cost driver for manufacturing overhead costs.

Which product line(s) have been overcosted or undercosted by using the plantwide manufacturing overhead rate?

A. Large, Medium, and Small Bags have been undercosted.

B. Large Bags has been undercosted; Medium and Small have been overcosted

C. Large Bags has been overcosted; Medium and Small have been undercosted

D. Large, Medium, and Small Bags have all been overcosted