Considering the context of the early church in Acts, what was the main theological challenge addressed by the Jerusalem Council in Acts 15 regarding Gentile converts?

A Whether Gentile converts needed to be circumcised and follow the Mosaic Law to be saved. B Whether Gentile converts should be allowed to speak in tongues. C Whether Gentile converts should be required to tithe to the church. D Whether Gentile converts could hold leadership positions in the church.