Taskeen Aboobaker is the operations manager for a retail company. He arranges quarterly meetings with his subordinates to update them about the performance of the company and motivates them to work to reach their objectives. He regularly collaborates with his subordinates on different projects to assist them in reaching their individual and organisation goals. Which one of the following levels of management does Taskeen form part of at the retail company? a. top management b. lower management c. senior management d. middle management