Track what path a learner takes

staperek​: If the branches have quizzes, Storyline will submit the data from the first quiz the user completes. Looking at that data would let you know which quiz was taken. (How you pull the data depends on the LMS.)

If you're not using quizzes, you could do this instead:

• Make the choose-a-role slide a fill-in-the-blank question slide—but with the text-entry field off the slide and removed from the focus order. Instead of a "question," just put the slide title into that field. 
• Add your own buttons for selecting the role.
• Use triggers to change the value of the text-entry field to the name of a role based on what the user selects. Be sure to put these triggers before triggers that jump to another slide.
• As desired, remove the Submit button from the Slide Properties, and add the Next button. Put the "Submit interaction" trigger to the Next button.
• To submit the question to the LMS, it has to be connected to a Results slide. You could put a Results slide at the end of each branch. Or steer all the branches to end at the same Results slide. Design the Results slide(s) however you want.

This is demonstrated in the attached file.

For future reference, this Exchange Best Practices section is for general questions about eLearning. You’re asking how to do something in the software. That type of question is a better fit in the Discuss Articulate Products section of the website. That's where those of us who regularly answer questions about how to use the software spend more of our time. And that's where more folks go to search for answers specifically related to Storyline, Rise, and other parts of Articulate 360.