In Youform you can use multi-select or single select questions and add pictures in the options to turn it into picture choice questions.
Here is how you can do it:
Open the block selection model and search for single select or multi-select depending on your use.
Then on the right editor start adding your options.
For each option, there is a gear icon. You can click on that, and there will be an image option from where you can add images for each of the options.
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