Which of the following makes it easy for a citizen to register to vote?
grandfather clause
lengthy residency requirement
national voter registration act
competency requirement

National Voter Registration Act

Explanation:

National Voter Registration Act of 1993 has been enacted to make the process of registration to vote easier for the American citizen and to maintain their registration. It also facilitates to upgrade the opportunities to vote to be accessible for every American. The act gives the responsibility of guiding the act to the Federal Election Commission.