How do I collect a selection process that changes available options each time it is used?

I have 40 countries for students to select. Once selected I want to remove that country as an option for the next student who uses the form. It's like a 'first in best dressed' voting option. Or it's like only having 1 kind of 40 items ... can you help? I've just tried using the 'Dynamic Dropdowns' widget but I can't seem to create a IF MATCHING relationship with previous entries. Any ideas?

Hello OnlineisEasy,

Unfortunately it is currently not possible to dynamically add or remove options in dropdown question. I would suggest you to please take a look at our "Gift Registry" widget and see if that fits into your requirement. This will allow you to limit how many items can be selected by users. Once it is selected, it will no logger available for to other users if limit is reached.

Do try it out and get back to us if you have any questions.

Thank you!