How did the intercontinental railroad affect life for American Indians? (will give brianlist)

Went through they're lands, more people from the east coast were moving into natives territory, or at least going through. Because more people it could lead to a shortage on resources depending on the instance. Maybe could cause conflict.

Explanation:

The correct answer is the following: option b. The growth of urban centers is the development that most influenced the expansion of trade. The development of greater urbanization led to the expansion of trade. When certain areas became centers of political and administrative duties they emerged into towns, in which people moved in from rural areas. This movement is known as urbanization. Urbanization calls for growth in population and therefore in the necessities of the community. With the creation of new towns and urban settlements, trade started to expand and to grow as well, with more people participating in the process.