Why might managers decide to use Activity Based Costing to allocate the manufacturing overhead for their factory between products? A. Because activity based costing is the simplest option B. Because managers are trying to find the method that makes their product cheaper. OC. The manufacturing process in their factory is complex and each product uses each activity to a different extent. OD. The manufacturing process in their factory is simple and there is really only one-single cost driver that makes sense for the entire factory