What does this mean?

After create a new alignment in Territory Planning, the Salesforce admin wants to bulk update Territory owners via CSV. After attempting the import, the admin is receiving an error indicating "Could not locate assigned owner".

What does this mean?
A . The user specified in the file does not match an existing Salesforce User
B . The area specified in the file does not match an existing area in the alignment.
C . The area being imported does not currently have an owner assigned to it.
D . The unit specified in the file does not match a unit in the alignment.

Answer: A

Explanation:

According to the Salesforce Help document 1, this error means that the user specified in the file does not match an existing Salesforce User. The admin needs to make sure that the user name or ID in the file is correct and that the user has access to Territory Planning.