How does the Apostle Paul's appeal to Philemon concerning Onesimus challenge or subvert the social norms and legal structures of the Roman world in the 1st century AD?

A Paul directly condemns the institution of slavery as inherently evil and demands Philemon's immediate compliance with Roman law regarding manumission. B Paul subtly advocates for a revised understanding of Christian brotherhood that transcends the master-slave relationship, urging Philemon to receive Onesimus not merely as a slave, but as a beloved brother in Christ, thereby undermining the social hierarchy. C Paul strategically uses Onesimus as a political pawn, attempting to incite a slave rebellion that would destabilize the Roman Empire and advance the cause of Christianity. D Paul primarily focuses on the economic benefits of freeing Onesimus, arguing that a free Christian worker would be more productive and contribute more to the church's financial stability.