A denial of the resurrection does not figure in early anti-Christian apologetics. That would be the obvious thing to attack if you wanted to stamp out this fledgling religion, right? But no one attacks it. Why do you think that is? I think it was because too many people knew it was true. There may have been bewilderment about its significance, but the fact of Jesus’ resurrection was never denied. Jesus was clearly raised from the dead. The argument was simply about what that could possibly mean.