In the book of Acts, what was the primary significance of the Apostle Peter's visit to the house of Cornelius, a Roman centurion?

A It marked the first recorded instance of Peter performing a miracle outside of Jerusalem. B It signified the official endorsement of the Roman government for the early Christian movement. C It demonstrated that salvation was available to Gentiles, not just Jews. D It allowed Peter to collect funds for the rebuilding of the temple in Jerusalem.