DRAG DROP You need to create a trainable classifier that can be used as a condition in an auto-apply retention label policy. Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order. 
This is the right order because you always have to create it first, test and tweak it so it works well, then publish for use in policies. "Retrain" isn’t a required step unless accuracy isn’t good and ToU doesn’t fit here. Pretty sure on this sequence from similar questions.
Looks right to me: Create the trainable classifier, Test the trainable classifier, Publish the trainable classifier. That's the actual sequence in Purview for using it in auto-apply policies. Retrain only matters if it fails testing first time, pretty sure. Someone correct me if I missed anything.
Create the trainable classifier → Test the trainable classifier → Publish the trainable classifier. That's the typical flow for Microsoft Purview classifiers if you want to use them in retention policies. Retrain only comes up if testing fails, which isn't part of the base requirement here. Confident this is right, but open to corrections if I missed an edge case.