Enable question in roster base on multiple answer

Dear Kobotoolbox user

Currently, we are working in kobotoolbox to conducting the survey. Now we need support from you to solve some error.
Q1 How many members are there in your household? (Multiple Select)
1- Under 6 years old
2- From 6 to 12 years old
3- From 13 to 15 years old
4- From 16 to 18 years old
5- From 19 to 65 years old
6- Over 65 years old

calculate C4
|integer|Q1_16_1| 1.16.1 Total Members of male in ${C4}|
|integer|Q1_16_2| 1.16.2 Total Members of female in ${C4}|
|integer|Q1_16_3| 1.16.3 Members Attending School of male in ${C4}|
|integer|Q1_16_4| 1.16.4 Members Attending School of female in ${C4}|

The question is if Q1 selected answer 1, 5, and 6 we would like Q1.16.3 and Q1.16.4 not asked. Please help us to solve this error.

Best regard Marady

Welcome to the community, @marady_168! Maybe you will also need to define what ${C4} calculation means. That should help the community to better understand your issue.

Dear @Kal_Lam
C4 is use for calculate mention code of Q1 were selected
what we need for help if Q1 selected answer 1, 5, and 6 should be skip Q1.16.3 and Q1.16.4.
Best regard marady