Which three parts of the user interface could be customized?

A UX Designer is going to create a custom app for a new team of service agents.

Which three parts of the user interface could be customized? Choose 3 answers
A . Tabs within the apps’s navigation bar
B . Relationship between standard objects
C . Page layouts of the records
D . Details to be shown in the records highlights panels
E . Opportunity lead scoring

Answer: A,C