Lead assignment to Partition - Assignment rule in Admin or Smart Campaiogn?

[Agrawal_Kirti]

Hello,

I was going through with a few questions related to the partition and workspace, please refer the question in screenshot.

As per my understanding, we should do assignments at the admin level, but the Adobe answer key says it should be at the smart campaign level.

Can anyone please help me to understand where I am missing here?

Thanks,