How to define the options for a checkbox field from the previously filled field?

2. Upon completing the questions above, my next question I will ask, "among all the fruits you know, which is your favourite?"

The answers which was previously defined will appear as a "Checkbox" or maybe any method to allow for the user to easily select previous listed Answers.

I understand that you want to display the options from the previously filled field to a checkbox or another field to select. Unfortunately, the checkbox or another field options cannot be changed dynamically. However, you may consider using User-contributed checkbox widget that allows the user to enter the values manually and check the options as well. 

But, the values entered by a previous user will be displayed to the next user as well. If you want to remove the options, you may remove them from the from edit mode.

Please give it a try and let us know if you need any further assistance. 

hi understood. unfortunate this is not going to work as we need to be pre-defined by previous answers, if not it will defeat the whole purpose.

however, referring to your suggestion, if the Form is unique by session ID, will the previously filled by other users be displayed as well?

As per checking the User Contributed Checkbox widget, even if the form is unique by session ID, the previously filled by other users is still displayed. This widget will allow the previously entered values to be displayed to another user. 

Please let us know if you need further assistance.
Regards.