Answer: Segmentation by conversion activity in the campaign
Explanation: Segmentation is the special feature that is used in the campaign's table to handle and organize the data on the basis of adding segments. E.g.- type, time, day etc.
Conversion action is customer action that is important for the business or activity that is specified by the owner.Thus, Jon can use segmentation to specifically categorize the campaign into app install section and first open section through conversion action which will specify the segment.