disable an already selected choice in subsequent drop downs

[Mustaque-Rashid]

I am using choice.js library to manage my drop downs. I have three drop down in the same page with same options(choices). I want to disable a choice, once its selected in a drop down and stop it from appearing as a selectable drop down choice in the subsequent drop downs. how do i do so using choices.js ?

Here is a js only solution, but i want to achieve the same using choices.js libraray as the library is in-charge of my drop downs.

A feature to do this will be a great value addition. If there is an easier option available , please share.