I want to create sub categories

Such as, if I ask Marital status and they select married then a sub category pulls up that requests the spouse's info.... if they select single, widowed or divorced - nothing else pulls up.

Can you help?

I suggest you use the "Show and Hide Field" condition. In this way, the fields will appear based on the selected answer.

Please check this demo form: https://form.jotformpro.com/71076681377969. You can clone it if you like to.

Here are the conditions I created:

Here's the result:

Please check these guides:
How-to-Show-or-Hide-Fields-Base-on-User-s-Answer
Hide-or-Show-Multiple-Fields-at-Once

Hope that helps. If you have any questions, let us know. Thank you.