Final answer:
The correct answer is that communication about the product and pricing in B2B sales primarily occurs through verbal presentations and discussions, reflecting the significance of personal relationships in the selling process.
Step-by-step explanation:
The correct statement from the provided options is that communication about the product and pricing in B2B sales takes place mainly through informal or formal verbal presentations and discussions. In contrast to this, written documents are indeed used in business communications, but the emphasis on personal relationships in personal sales and B2B transactions often necessitates direct verbal interactions. This means that sellers must understand the buyer's needs, customize the marketing mix accordingly and that pricing is often negotiated rather than uniform across all customers.
In B2B sales, relationship-building, understanding the buyer's personality, and customizing the marketing mix are crucial. Although written documents play a role in formalizing agreements, they are typically proceeded by substantial verbal communication.