Final answer:
Sales brochures are the documents that salespeople provide to help buyers remember the details of a sales presentation.
Step-by-step explanation:
The written documents provided by salespeople to help buyers remember what was said in a sales presentation are known as D) Sales brochures. Sales brochures are designed to provide potential customers with an overview of the product or service on offer. They often include key features, benefits, and sometimes pricing information. These materials can be taken away by the prospective buyer to refer to later, helping them to recall details of the sales presentation and make informed purchasing decisions.