Answer:
Derek is a Driver/Sales Worker, Taylor is a Cashier, and Rashida is a Supply Chain Manager.
Step-by-step explanation:
Derek's core mandate is to sell racing gear. The vans act as his store. Dereck can be best described as a salesperson or a sales worker. Because he drivers his van around, he is a driver/sales worker.
Taylor is assigned the role of collecting money from customers who buy merchandise. He has to ensure every customer pays the collect amount and is given the right change if there is a need. The functions of Taylor are those of a cashier.
Rashida supervises the making and delivery of aquariums fish tanks. He controls and directs the actions of others to ensure objectives are met. Rashida is a supply chain manager as this role revolves around ensuring customer orders are delivered on time.