~Hello there! ^_^
Your question: What US constitutional right did president Lincoln suspend..?
Your answer: President Lincoln suspended the rights of habeas corpus during the Civil War.
Happy Studying! :D
The right answer would be a. Promote freer trade with Canada and Mexico.
As the name indicates, the North American Free Trade Agreement (or <em>NAFTA</em> for short), was designed with the intent to encourage the economic growth of the three countries involved, promoting fair competition, job growth and an increase in imports.
This was done by eliminating almost all tariffs and taxes involved on imports and exports between Mexico, the United States and Canada.