Random from Multiple Selection

Dear Support Team

I would like to random Brand from Multiple selections. For example

Do you familiar with the following brands.
1.Brand 1
2.Brand 2
3.Brand 3
4.Brand 4
5.Brand 5

For the next subsection, we will ask only one brand with randomization from Multiple select and would like to show %Brand Name% in the question text.

Categorical multiselect questions may not be used in a text substitution so you will need to construct a string variable from your selections before displaying it in the subsequent questions in the spirit of:

(selection==1)?"United Airlines":"" + (selection==2)?"Lufthansa":""+....

Thanks for your support survey solutions team.
I found this solution in public questionnaires.
Here is link.