What are three advantages of using the canned sales presentation method?

(1) It ensures that the salesperson gives a well-planned presentation and that all of the company's salespeople discuss the same information. (2) It both aids and lends confidence to the inexperienced salesperson. (3) It is effective when selling time is short, as in door-to-door or telephone selling. (4) It is effective when the product is non-technical such as books, cooking utensils, and cosmetics.