[Plugin: Jazzy Forms] Deactivade elements in Dropdowns

I have a quick quiz where I ask 3 questions and you use 3 dropdowns to select your answers. Values are then added and a final score is given (Sort of like a typical “are you a nice person” type of quiz found in those women’s magazines, heh).
Now I’d like to have inactive dropdown and/or a result field that only works once all 3 answers are given.
Can’t deactivate the first option in each dropdown, so I thought I’d use IFs.
But how do I say what the result field is supposed to say?
Can I give it non-numerical values, like a string? “Please answer all 3 questions” or something?

This is a fantastic plugin and I see a LOT of useful applications for it, so you REALLY need to get documentation going, mate!

https://www.ads-software.com/extend/plugins/jazzy-forms/