In certain points in the story the readers get choices that affect the story, depending on if the change is slight or large.
This one here is small: One will learn to cook, while the other learns medicine.
Daisy Cooks/Vince Doctors
OR
Vince Cooks/Daisy Doctors
This one however, is slightly more big: Does the MC go save Sean, or go on Kierans mission to the cabin(Arthur does the other)
Save Sean
OR
Kieran Mission
Chapters like this may pop up every half-dozen or more-ish chapters