Considering the cultural context of the Roman Empire, what is the significance of Paul's emphasis on 'freedom' in Galatians, particularly in relation to the law and the Spirit?

A It encourages the Galatians to revolt against Roman rule, asserting their political independence. B It refers primarily to freedom from physical slavery, urging slaveholders to release their bondsmen and bondswomen. C It highlights the freedom believers have from the burden of the Mosaic Law through faith in Christ and the empowering presence of the Holy Spirit, contrasting legalism with grace. D It advocates for unrestrained personal liberty, allowing believers to indulge in any behavior they desire.