In the context of the early church, what was the primary theological significance of the dispute regarding circumcision for Gentile converts, as discussed in the book of Acts?

A It was merely a matter of cultural preference and tradition. B It highlighted the ongoing relevance of the Mosaic Law for salvation. C It underscored that salvation is by grace through faith in Jesus Christ, not by adherence to Jewish Law. D It demonstrated the superiority of Jewish converts over Gentile converts.