Gordon is running a Google App campaign for a news publisher and has recorded 200 unique subscriptions in the last 30 days. Is this enough conversion data for the machine to achieve optimal performance?

Yes. The system needs a minimum of 30 unique conversion events across 30 days.
Yes. The system needs a minimum of 10 unique conversion events across 30 days.
No. The system needs a minimum of 300 unique conversion events across 30 days.
No. The system needs a minimum of 3,000 unique conversion events across 30 days.