The question regarding where salt manufacturing first began pertains to U.S. history and the indigenous tribes listed. However, none of the given options (A. Seminole land, B. Creek land, C. Cherokee land, D. Arapaho land) are widely recognized as the origin of salt manufacturing in a historical context.
Salt was an important resource used by various civilizations across the world, and in the context of the United States, salt production became significant in regions such as the Great Lakes and the Ohio Valley due to natural salt deposits and brine springs.
If you are looking for a specific answer based on the choices given, please provide more context or additional information so that I can assist you better. Otherwise, I can't definitively choose one from the options provided.