I'm pretty sure that it's mostly part of the executive branch
Federal government possesses the power to do those things
Well, it wasn't really religion which was the primary goal of the western countries but dominance on land. Since it has been a bloodbath in conquering lands, they ought to use religion to peacefully influence these tribes by bring priests.
The answer should be <span>D. Itinerant preachers spread their religions.</span>
Something that has to do with settlement