Final answer:
A customer is a lifetime relationship, reflecting the long-term value and ongoing connection between a customer and a business, which is more valuable than a one-time sale. The correct answer is 3).
Step-by-step explanation:
Completing the sentence: "A sale is a one-time transaction; a customer is a lifetime relationship." This statement places emphasis on the importance of viewing a customer not just as a source of a single sale, but as a party to a long-term interpersonal connection that can provide ongoing value to a business.
Every purchase is indeed based on a belief about the potential satisfaction a product or service will provide. Since this satisfaction is influenced by the available information, it highlights why a strong customer relationship is essential as it allows the transfer of clearer, trust-based information.
A robust customer relationship can mitigate the impact of imperfect information and contribute to repeat purchases, loyalty, and even word-of-mouth recommendations, underscoring its value as an ongoing investment for businesses in comparison to any one-time transaction.