Final Answer:
When company promotional materials are used as sources of selling information, salespeople may need to reference or familiarize themselves with the content in the promotional materials.
Step-by-step explanation:
When company promotional materials are utilized as sources of selling information, salespeople may need to reference or familiarize themselves with the content presented in these materials. This enables them to effectively communicate the information to potential customers, highlighting the benefits, features, or unique selling points of the products or services being promoted.