Businessman: Sales are the most important part of any business. Marketing and communications are never as effective as a strong sales team. Persuasive salesmen can sell as many units of an inferior product as average salesmen with better quality products. Our company should eliminate every department except the sales team. Which one of the following is an assumption on which the businessman's argument depends? ["The sales team's effectiveness depends on contributions from the other departments.", 'Companies often separate their departments into distinct teams.', 'Businesses often have other departments besides marketing, communications, and sales.', 'The company would be better off with only a sales team.']