Which of these is NOT one of the identified ways that marketing employees contribute to product and service quality? Question 5 options: A) They correctly identify customer needs and requirements. B) They check that customers have received proper instructions, training, and technical assistance in the use of the product. C) They design products that fill clearly researched customer needs. D) They stay in touch with customers after the sale to ensure that they are, and remain, satisfied. E) They make sure customer orders are filled correctly and on time