Please answer the three questions

QUESTION 16 If a manager is concerned about doing the work with the least cost and waste possible, then his or her primary managerial concern is: O effectiveness. hiring. O expertise. O efficiency. O delegation. QUESTION 17 In an automobile president of marketing. Any related communication between them will be referred to as informal communication O upward communication QUESTION 18 an organization, decisions regarding adding new products, acquiring companies, and moving into foreign markets would most typically be made by a production manage the first-ire mar agement. the middle management. the top management 0- a sales manage