Which statement describes the configuration of the container?

The settings for a container in an Azure Cosmos DB Core (SQL) API account are configured as shown in the following exhibit.

Which statement describes the configuration of the container?
A . All items will be deleted after one year.
B. Items stored in the collection will be retained always, regardless of the items time to live value.
C. Items stored in the collection will expire only if the item has a time to live value.
D. All items will be deleted after one hour.

Answer: C

Explanation:

When DefaultTimeToLive is -1 then your Time to Live setting is On (No default)

Time to Live on a container, if present and the value is set to "-1", it is equal to infinity, and items don’t expire by default.

Time to Live on an item:

This Property is applicable only if DefaultTimeToLive is present and it is not set to null for the parent container.

If present, it overrides the DefaultTimeToLive value of the parent container.

Reference: https://docs.microsoft.com/en-us/azure/cosmos-db/sql/time-to-live