Other option in select_one when list is dynamically generated in repeat group

1. What is the issue? Please be detailed.
Append "Other" option to select_one list.
I am generating option list from repeated answers using text field and concat in calculation.
Answers I am able to show in list, how to add Other option in list

2. What steps can we take to reproduce this issue?
see attached xlsform

3. What have you tried to fix the issue?
I have tried join, concat outside the repeat repeat group to the dynamically generated list.
used above link to generate dynamic list

4. Upload any test forms or screenshots below.
2_household_info-form-designV2.xlsx (37.5 KB)