CONVINCE A CLIENT TO PURCHASE AN UPGRADED SERVICEB) ...C) ECOSYSTEM

2) - 7495 EXAM FOR STUDENTS OF TOURISM INDUSTRY 6 PAGES3 PARTS GRAMMAR VOCABULARY AND READING
7495 EXAM FOR STUDENTS OF TOURISM INDUSTRY 6 PAGES3 PARTS GRAMMAR VOCABULARY AND READING

2) convince a client to purchase an upgraded service

b) ...

c) ecosystem