Hi Peter,
You can do what Matthias suggests, but you can also achieve most of what you want with a CLOZE type question with three MULTICHOICE_HS questions. The HS part defines the output to be shuffled horizontal radio button answers. I find that if I make sure students know the answers are shuffled, it helps cut down on cheating in a lab situation. If you use MULTICHOICE_H, no shuffle, then you can also add the A), B), C), as part of each answer. The reason I say you can get most of what you want, is with radio buttons you cannot control the spacing to make the alignment match up unless you are using Short Answer questions.
This is from a Moodle 3.5.2+ using the new Record audio tool in the Atto editor. The Record video tool will also let you add video as part of the question, if you want to.
