Wrong, because Constantine did not make Christianity the state religion, he merely decreed the Edict of Toleration and personally involved himself in the faith because he believed it led him to victory. Wrong, because Armenia, eight years earlier, actually did make Christianity its state church. Wrong because Edessa, a monarchial City State, did so even earlier. Wrong, because St. Ignatius who was fed to lions, spent most of his episcopate in the first, and the same is true of St. Clement, and St. Polycarp, who if I recall was the last to know St. John the Apostle personally. Wrong because bishops were, and in most of the Eastern churches still are, informally elected by popular consent and in some cases formally. And wrong because the episcopate as described and understood in the New Testament is consistently reflected in later epistles. And wrong because what defines the New Testament was set out by St. Athanasius in the fourth century, before that there was no universally agreed on NT canon. Even afterwards there was not.