What the question is asking (in simple terms):

Universal Containers currently has large sales territories that are too big for reps to cover. Leadership plans to split each big territory into two or more smaller ones, which means they’ll need to move (reassign) certain customer accounts from the old territories into the newly defined smaller territories. Before making those changes live in Sales Cloud, the sales operations team wants to preview how all the account assignments will look once the new territories are set up.

Why they need a preview:
They want to confirm that each account is going into the correct new territory.

They don’t want to overwrite or commit changes in Production until they’re certain the assignments are accurate.

To preview assignments in Sales Cloud:

Salesforce’s Enterprise Territory Management feature has a “Planning” mode where you can run your updated territory assignment rules without activating them. In Planning mode, you can see exactly which accounts would be assigned to each new territory based on your rules—before making those changes live.

So correct answer is C :

- Run the updated assignment rules in Planning State and view the accounts on the territory detail page.

In Planning State, you load (or adjust) your new territory definitions and assignment rules.

Then you run those rules, and Sales Cloud shows you each territory’s account list on the territory detail page.

Once sales operations confirms everything is correct, you can move from Planning to Active, and the new assignments go live....