Creating an Array to sort variables

If the results sentence appears on the same slide as the choice buttons, you can track the responses based on whether a given button is Selected or not. 

If the results sentence appears on a different slide, you'll need to track the responses with variables. For example, use T/F variables that are adjusted based on the user's selections.

To display the appropriate results sentence with just Storyline, the "User likes..." text box would need a separate state for each possible combination. For each state, you'd need a trigger with conditions to indicate the selections required to show that state. (For example, change to the "Chocolate" state when "Chocolate" is selected, and "Vanilla" is not selected, and "Mint" is not selected, and "Strawberry" is not selected.)

Otherwise, you could use JavaScript to create the correct phrasing. I can't help you with that, but perhaps a JS expert will step in with a sample script. 

By the way, this post has info and a demo about using variables to track custom surveys: TIP: Track Responses to Custom Questions or Surveys - Articulate Storyline Discussions - E-Learning Heroes