The correct answer is - D) Oklahoma.
From the four suggested federal states in the United States of America, the least densely populated is the state of Oklahoma. Georgia and Louisiana are a level up, and they have similar densities of their populations, while Michigan is very densely populated state, as are most of the states in the Great Lakes area and in the northeastern part of the country.
In general, the most least densely populated states in the United States are the ones that have territories on the Great Plains, as well as the ones that have territories on the Rocky Mountains.
