Extra form validation . . .

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I'm versed in doing procedural PHP programming for validating forms. However, I'm new to OOP and not totally sure how to go about this, though it seems like it would be super simple, I just need a little help in the right direction, and help me get a good start in form validating w/ c5.
That being said, I've got a form that I've made using the form block. It has 4 questions, all of which have a radio button Yes/No answer.
If the user checks all Yes, it passes. I'll need it to go to a separate page that has a success message with further details.
If any "No" answers are check, it could go to the same page with a "Sorry, you don't qualify" message, but that could also just be sent as a response to the form, like it works as is.
Any help in pointing me to in the right direction to achieve this would be most helpful.
Thanks in advance!
Abs0lute

Abs0lute