What conclusion can be drawn about the expansion diffusion of the religion shown on the map?

The conclusion that the expansion diffusion of the religion shown on the map is assisted by the presence of a major trade route is correct because trade routes historically serve as conduits for cultural exchange, including the spread of religions. As traders and travelers move along these routes, they often bring their religious beliefs with them, leading to the diffusion of those beliefs to new areas. This pattern can be observed throughout history, where significant religions often spread along established pathways for commerce, facilitating contact between different cultural groups and promoting the adoption of new religious ideas.

In contrast, options about limited geographical spread or ties to agricultural practices do not capture the broader mechanisms of religious dissemination that result from trade interactions. Limited geographical spread implies a constricted expansion that does not account for the diverse routes taken by traders and merchants. Similarly, while certain religions may indeed align with agricultural practices, this connection does not specifically relate to the patterns of diffusion being facilitated by trade. The influence of colonial powers might also be relevant in some contexts but does not directly address the role of trade routes as a primary means of religion spreading through expansion diffusion.