Correct answers: D and E.

D. The Article Type field is no longer accessible via SOQL or the API.
After enabling Lightning Knowledge, integrations that query ArticleType will break because that field isn’t exposed anymore. The data model changes to a single Knowledge object with record types.

E. Users must have Modify All permission to delete archived articles.
In Lightning Knowledge you can only delete archived articles if the integration (or user) has Modify All Records; lacking it will cause delete steps in the lifecycle job to fail.

Notes on the other options:

A is not accurate—since API v47.0, draft, published, and archived articles can be returned when Lightning Knowledge is enabled.

B is true (Lightning article URLs differ/aren’t static), but URL changes wouldn’t by themselves break an archive/delete lifecycle integration.

What is Amde Type?

I think correct answer is D and E https://help.salesforce.com/s/articleView?id=sf.knowledge_migration_tool_learn.htm&type=5