Already found it. Feedback only displays if you use other questions than the Rate (scale 1 - 5) type.
Moodle 3.2 / plug-in version 3.2.5
I have the same problem: in advanced settings I can only see content options and submission options, but feedback options is missing although I use radio button and check boxes questions...
Thanks for your help.
Ok, I've found it!
There are a couple of prerequisite conditions to show up the feedback options in advanced seetings (type of questions, number of questions, label, required questions).
If you don't match any of these prerequisite conditions then the feedback options won't be displayed.
More information (thanks to him): here.
You need to read this carrefully and go step by step.