Which two of these statements are true about creating segments?

In a segment you can reference customer properties OR another segment, but not both

A segment run can be triggered by the Next-Best-Action outbound schedule

The list of customers in a segment can be viewed from within the segment

When building the segment, if you want to know the count resulting from the criteria defined so far, the only way to do this is by running the segment

The result of a criteria group can be combined with the result above it using AND and OR operators