Which of the following best illustrates a sibling relationship?

A sibling relationship is specifically defined as the interaction and bond between brothers and sisters. This connection typically involves shared experiences, mutual support, and often complex emotional dynamics that arise from growing up together within the same family. Siblings often develop a unique understanding of one another due to their shared background and familial ties, which can include a wide range of feelings such as rivalry, love, and loyalty.

The other options represent different types of relationships. For example, relationships with parents involve a different generational dynamic where authority and care typically flow from parents to children. Friend relationships, while important, are based on choice and external factors rather than familial bonds. Relationships with cousins may share some familial characteristics but are generally not as close or influential in a person's life as sibling relationships, as cousins may not have the same daily interactions and shared upbringing as siblings do. Thus, the most accurate illustration of a sibling relationship is the bond between brothers and sisters.