Multi-choice problem: Continue writing the next sentence in this paragraph:

How to celebrate moving into a new home
Send out invitations.
Invitations can be sent out via the postal service, your phone, your email, or even by creating an event on facebook. Use the medium you feel most comfortable with.

OPTIONS:
[I] Online invitations can be easier, as you will not have to locate the addresses or phone numbers of all of your friends and family members. If sending out paper invitations is too time-consuming or stressful, consider using an online invitation site capable not only of sending invitations, but also keeping track of rsvps.;
[II] Post fliers! It doesn't matter what, as long as it says " invite now! " and enough time is allotted to post your invitation. In other words, fill the date boxes to the top of the invitations.;
[III] Many people use invitations to avoid the hassle of sending out fundraising invitations, or to give thanks for your new home. Modern people feel numb at receiving invitations to family holidays, instead of thankful for the memories and things that they love.;
[IV] If you're having a lot of fun each day, you might be able to motivate visitors to create more invites. Generally, emails will be sent out around the time of the major holiday season.;
[I]