What is the source of the problem?

A DevOps Engineer notices that existing pages are not updated through a package installation. The updated pages are present after deleting the pages that are not updating, and reinstalling the package.

What is the source of the problem?
A . Install mode is set.
B . Update mode is set.
C . Merge mode is set.
D . Replace mode is set.

Answer: C

Explanation:

the behavior depicted here is a behavior you get when using merge as node, not update, update would update existing pages, where merge would leave existing pages like so, only installs new nodes if they don’t exist