In the book of Philemon, what is the theological significance of Paul's appeal to Philemon regarding Onesimus, and how does it reflect core Christian values?

A Paul is primarily concerned with ensuring Onesimus repays his debt to Philemon. B Paul is advocating for the continuation of slavery within the Christian community. C Paul is demonstrating the transformative power of the Gospel to reconcile broken relationships and promote equality, urging Philemon to receive Onesimus not as a slave, but as a brother in Christ. D Paul is simply trying to avoid getting involved in a personal dispute between Philemon and Onesimus.