The design of the UI for selecting healthcare benefits uses a single section and a single list of plans. The section and list of plans are reused for each of the benefit types: medical, dental, and vision.
The fifth point is to pass a known parameter from the container sections used for selecting medical, dental, and vision benefits to the data page that holds the list of available plans. The value of the known parameter will be used to filter the list of available plans so the end user sees on the relevant plans depending on what screen they are on.
Look to page 63 of the exercise guide for a reminder of what the name of the parameter is.