Cooper's Bags Company manufactures cloth grocery bags to be sold to grocery stores and other retailers. Cooper's Bags Company sells the bags in cases of 2000 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 estimated $8,214,000 of annual manufacturing overhead. Of this amount, $2,180,000 is associated with the Large Bag line, $3,418,000 is associated with the Medium Bag line, and $2,616,000 is associated with the Small Bag line. Cooper's Bags Company is estimated to run a total of 42,000 machine hours: 13,200 in the Large Bag line, 15,800 in the Medium Bag line, and 13,000 in the Small Bag line. Cooper's Bags Company 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 Bags has been overcosted; Medium and Small have been undercosted.

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

C) Large, Medium, and Small Bags have all been undercosted.

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