使用onchange删除select元素中其他值的值

So I have a made a couple of attempts of this and I feel I was close but couldn't find the correct ajax. The select elements are made dynamically on the click of a button, and they have the same options, however what I want to happen is once you choose an option, all other occurrences of that option is removed from the select elements leaving the one you chose alone.So I have a made a couple of attempts of this a