At Kohlberg's stage 4 of moral development, what should Bob's sister most likely do regarding Bob's actions?

At Kohlberg's stage 4 of moral development, individuals begin to understand the importance of rules and maintaining social order. In this stage, moral reasoning is based on a sense of duty to uphold laws and responsibilities, which includes considering the welfare of others in the group.

In this context, when Bob's sister chooses to tell their mother about Bob's actions, she is demonstrating a commitment to upholding family rules and societal expectations. By reporting Bob's behavior, she is prioritizing the value of honesty and accountability. This action reflects a belief that the rules are there to support the well-being of the family and that following those rules is essential to maintaining social order.

The other options, while they may seem plausible, do not align with the principles of stage 4. For instance, making a deal to keep a secret undermines accountability, confronting Bob directly could lead to moral conflicts without a resolution, and ignoring the situation avoids responsibility altogether. Thus, telling their mother is consistent with the expectations of Kohlberg's stage 4, emphasizing the importance of adhering to rules and ensuring that everyone is held accountable.