Final answer:
The Intercourse Act of 1790 recognized Indian Nations and regulated trade between Native Americans and non-Native Americans, establishing federal control over land transactions and trade with Indian tribes.
Step-by-step explanation:
The Intercourse Act of 1790 was a piece of legislation that played a significant role in shaping the relationship between the United States government and Indian Nations.
One of the primary functions of the Intercourse Acts from 1790 to 1834 was to prohibit unregulated trade between Indians and Americans and ensure that only the federal government could license traders to buy Indian lands.
This federal control over trade and negotiations with Indian tribes was confirmed in the Supreme Court decision of Johnson v. M'Intosh in 1823, which established that private individuals were not authorized to purchase lands directly from Native Americans.
Given the historical context and information presented, the correct answer to the student's question is that the Intercourse Act of 1790 recognized Indian Nations.
It did not address issues of public accommodations, interracial marriages, or same-sex marriages; those issues were dealt with in other historical contexts and legislation, such as the Civil Rights Act of 1964 which addressed segregation in public accommodations.