Pairing Company Has the Following Cost Drivers Identified as a Through

Pairing Company has the following cost drivers identified as A through F for determining product manufacturing overhead costs.
(A) Number of pieces of equipment
(B) Number of direct material purchase orders
(C) Number of production runs
(D) Square feet of warehouse space
(E) Number of machine hours
(F) Square feet of factory space
For each of the following activity cost pools, choose the letter of the most appropriate cost driver for each cost pool.