Question 4 Not yet answered Kruella is an on-line retailer of pet food and pet care products. It has recently negotiated an improved purchasing agreement with its key supplier, which has resulted in a significant reduction of Kruella's inventory requirement. Which of the following represents the key driver in the Rappaport's shareholder value framework that is impacted by Kreulla's initiative? Marked out of 1.00 Select one: O a. Fixed capital Flag question O b. Operating profit margin C. Process efficiency O d. Working capital O e. Sales growth