Final answer:
The correct description for someone with an interpersonal relationship, based on the book's definition, is Ben, who values and actively nurtures connections with friends and family.
Step-by-step explanation:
The description that applies to someone with an interpersonal relationship as defined in the book is: B) Ben values and actively nurtures connections with friends and family. An interpersonal relationship involves forming connections with others and can contribute to happiness, fulfillment, and good health. Research suggests proximity plays a significant role in forming these relationships because individuals are more likely to become friends with people they see regularly. Moreover, people are motivated to engage in relationships that offer more benefits, such as companionship and intimacy, than costs.