In which of the following relationships would there NOT be an insurable interest?

The concept of insurable interest is foundational in the underwriting process of life insurance. It pertains to the requirement that the policyholder must have a legitimate interest in the continued existence of the person being insured, ensuring that the insurance contract is not just a wager on that person's life.

In a business context, the relationship between a business owner and a business customer does not inherently create an insurable interest. A business customer is typically considered a transactional relationship, where the business owner does not hold a financial stake in the customer's life or health. Therefore, an event leading to the customer's death does not result in financial loss to the business owner, which is necessary for establishing insurable interest.

In contrast, relationships such as parent to child, business partner to business partner, and brother to sister generally involve a meaningful emotional, financial, or familial connection where the death of one party could lead to a direct financial loss or emotional hardship for the other. These relationships are recognized for their insurable interest, thus making the other options viable in terms of having insurable interest.