How do I combine multiple choice options with nested dropdowns?

I am asking a survey question where I want respondents to first select a single option from a list. Some of those options have additional descriptive choices and some don't. I tried doing a Drilldown question and it's terrible, I really want the first level to show all options. I don't think the Side-by-Side will work because I cannot see how to make the columns have different values for each initial choice.
I want the final question to look like this ...
() Choice 1 - [Dropdown Menu]
() Choice 2
() Choice 3 - [Different Dropdown Menu]
etc.
Does anyone know how to do this? I'm not a JavaScript coder, so hopefully there's a library if this can't be handled within the main survey options. Thanks!