What unusual step did Oregon take to increase voter registration?

The state automatically registers all citizens over eighteen to vote.

The state ended voter registration.

The state sends every resident a voter registration ballot.

The state allows online voter registration.

The state allows online voter registration.

Explanation:

Oregon offers options to register online. You can register to vote by mail in Oregon by printing a voter registration form, filling it out and sending it by mail to the local election office. You can also register to vote in person if you prefer.

To register the citizen must have the following requirements: be a citizen of the United States, be a resident of Oregon, be at least 16 years of age to register, and be at least 18 years of age before the day of the election to vote.