Definition: Audience targeting is a feature which helps to display the content/data (e.g. list, library, web part, links, etc...) to only specific group or Audience.

1. Below are the options of Audience

• SharePoint Group
• Distribution Lists(Can be created using Admin centre and it is used to add group and add user in to the group)
• Security Groups
• Global Audience (This is set using Manage Audience option in Office o365 and SharePoint server )

2. You can enable Target Audience on below options

• SharePoint List or Library
• List items
• WebPart
• Navigation Link