FNG Corporation employs 4 purchasing agents. Rick processes purchase orders for vendors starting with the letters A through H, while Merrill does the same task for vendors from I through N. Esteban deals with vendors in the O through R range, and Kathy handles the rest of the alphabet. The most likely cost driver for the purchasing agents salaries is the:

Group of answer choices

A)Number of vendors within each alphabetical segment

B) Number of purchase orders processed each month

C) Average dollar amount of each purchase order

D) Number of product lines FNG produces

I think the correct answer is B.