I have played around with JSON in my previous project and I am doing it again now so I thought I’'d mention that once you parse the JSON string to scene/global/object variable it “groups” up like the below.
So this means you will need to include what group your variable is in, for example if I wanted to get the options-3 text, I’d have to use variable_name.1.option-3 as it’s in group 1.
If you know what number each group will be, it should be fairly simple to update your variables. Otherwise you may have to look into creating a key/value system to keep track of what group has what data.
EDIT: Looks like you do know about the group, however your Parse JSON string should be VariableString(myjsonfilevariable) as that is where you stored the raw string, also JSON file is not formatted correctly. Remove your ” from the keys/values and use "