Which set of components do you need to add breadcrumb navigation to an existing application? 

Answer options:

A. navigation list, breadcrumb region, and breadcrumb entries
B. navigation list, breadcrumb, and breadcrumb entries
C. breadcrumb, breadcrumb entries, and breadcrumb regions
D. breadcrumb, breadcrumb entries, and navigation regions

C

Reference: https://docs.oracle.com/database/apex-5.1/HTMDB/creating-breadcrumbs.htm#HTMDB25538