Multiple choice cascading

I am struggling to create a cascading multiple-choice. I have two fields, “desc” and “checker.” I want to show three email addresses in checker multiple choice based on the “desc” field. But the problem is in desc field i have 14 choice and in checker i have only three email addressess.

Welcome to the community, @farmanshah! If I understood correctly, it seems like you wish to list out 3 choices only from the total of 14 choices that are seen inthe desc field. Did I get you correct?

In desc multiple choice i have 14 option:
desc multiple choices:
1-Salary breakup Change (Promotion)
2-Salary breakup Change (Academic/Professional Qualification)
3-Salary breakup Change (MCE Certified)
4-Salary breakup Change (Others)
5-Additional Responsibility
6-Second shift Allowance
7-Counselling Allowance / SLA
8-Headship Allowance
9-Subject Specialization Allowance
10-Commuting Allowance
11-Dislocation Allowance
12-English Language proficiency
13-AKU EB allowance
14-Fixed DA

Both desc and checker multiple choices are different. I have share the mapping table.