How to show/hide submit button based on a condition.

I know this is an older question, but it has helped me to partially create my form.  I need one more condition - the Submit button should only be shown if the correct answer is selected. Can the "Submit" be included in the field containing "Correct" ??

I do not want the submit button to work unless the correct answer has been provided.
And this should run through a series of 7 questions - each requiring a correct answer to move forward.

Is that possible?

You can apply conditions to the submit button too, here is an example:

If you need more help, let us know what the form you are working on is, and under which criteria the submit button should be shown. Let us know if you need more help.