More detail on how unsubscribed contacts are handled by CoPilot

Hi, I'm asking this on behalf of a customer who wants to understand a little bit more clearly how CoPilot manages contacts who have previously unsubscribed. Is the check for an unsubscribe done before or after the power list results are generated?

In other words, if a contact has previously unsubscribed, but they otherwise meet the criteria of the powerlist, will they A) show up in the power list results, but not receive the email or 😎 not show up in the power list results at all?

Thanks!