Hello Njal,
I don't think this is possible with the standard multiple choice question. I don't know of any other similar questions that this would be possible with, but other people could.
To make the feedback easier to read, you could add it manually in the "General feedback" of the question as a bulleted list of the correct choices if the choices are shuffled, or a numbered list if the choices are not shuffled. It's obviously a bit more work than displaying the "Right answer" automatically.
The other thing you could do is modify the multiple choice question itself using a plugin, which would be the best solution.
I don't think this is possible with the standard multiple choice question. I don't know of any other similar questions that this would be possible with, but other people could.
To make the feedback easier to read, you could add it manually in the "General feedback" of the question as a bulleted list of the correct choices if the choices are shuffled, or a numbered list if the choices are not shuffled. It's obviously a bit more work than displaying the "Right answer" automatically.
The other thing you could do is modify the multiple choice question itself using a plugin, which would be the best solution.