Organisations Rely on Personal Selling for Which of the Following

Organisations rely on personal selling for which of the following reasons?

A) To quickly move a product to the last stage of its product life cycle
B) To avoid use of the 'personal touch'
C) To more efficiently sell complex and/or expensive products
D) To keep their products from moving from the introduction stage to the growth stage of their product life cycle
E) To make more efficient use of the promotional mix