Want to made hierarchy in ODK form

Hi,
I want to add hierarchy in my form.
I am adding the picture,please guide me how can i prepare form according to this hierarchy.

Will be very thankful to all.

Regards,

Hi @tasadduq786

What you are refering to is called Cascading Select in ODK. Please have a look at the documentation

https://docs.opendatakit.org/form-logic/?highlight=cascading#filtering-options-in-select-questions

http://xlsform.org/#cascade

Example form

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