8. Assume that Shaykha's yogurt business expanded and Shaykha hired several employees to purchase inventory from suppliers. What class(es) and association(s) would you add to the diagram to track this information? a. An EMPLOYEES class and an association between EMPLOYEES and PURCHASES. b. An EMPLOYEES class and an association between EMPLOYEES and SUPPLIERS. c. An EMPLOYEES class and an association between EMPLOYEES and INVENTORY d. An EMPLOYEES class and an association between EMPLOYEES and SHAYKHA. e. None of these is a correct addition to the diagram