Hey, I have an issue I'm trying to resolve and past solutions in that matter didn’t help well

in my survey, there is a picture of 2 machines presented as the question and the participants need to choose either left or right.

I tried to fix the alignment of the radio buttons using costume HTML and CSS codes unsuccessfully.

I just want to align properly the radio buttons to fit underneath the picture.  and to make sure this alignment holds even if I'm using a mobile phone and not a laptop etc.

link to the picture itself.