Multi-select problem: How does the next paragraph end?

How to blow a bubble with bubblegum
Buy some bubblegum.
You can buy gum at pretty much every corner store. Chewing gums can be used to make bubbles, but they won't be as big, and they'll usually pop too easily.

[I] To start off, select a pack of bubblegum like double bubble or bazooka. Generally, if there is a picture of a bubble on the package, it's a good choice. [II] Try buying some beach-friendly stuff, such as liquid gum or soft gum, for those little bubbles-it will roll. You can also check online for gum specifically for bubbles, as the flavors are often very subtle. [III] Carrot straws won't come as easily. Apply a clear jelly/wax mixture to your lips. [IV] Always follow the packaging instructions carefully, and don't use gum that contains tea and processed sugar. Gather your supplies and make some bubbles.
[I]