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