What were the two core problems the Director of Operations from the company that builds valves and pumps had when dealing with his approach to managing inventory with ABC? [the consulting project that l rejected case] Select the [2} that apply from the list below C] a. The company managed many inventory items which made the situation difcult to manage C] b. He had learned, but did not understand how to implement the ABC model [3 c. The items that the company purchased had very long lead times C] d. He had only worked at this company for 1 1/2 months so he did not have all of the required information; that is why he required help. C] e. He dedicated all of his attention to the A items because the C items are less important