Final answer:
The correct condition that eases voter registration for citizens is the National Voter Registration Act, which simplifies the registration process. Voter registration requirements include a completed application, residency requirement, and sometimes a paper application for those without state identification.
Step-by-step explanation:
The requirements for a registrant to renew their registration can vary depending on the field and the purpose of the registration. To respond to the student's given question about voter registration, the condition that makes it easy for a citizen to register to vote is c) National Voter Registration Act. This Act was implemented to simplify the process of voter registration. Under this act in all states except North Dakota, citizens wishing to vote must fill out an application listing their name, residential address, and may include party identification, and they must affirm their competence to vote. For those who do not have state-issued identification cards or driver's licenses, paper applications are usually required. Additionally, other conditions such as residency requirements may apply, typically involving a period like thirty days before becoming eligible to register. Moving to a new address may require re-registration or an update of one's address, which can be done through the Department of Motor Vehicles in some states.