JSFiddle - React, Tailwind, and code Playground

HTML

<select data-bind="value: selectedAnswer">
<!-- ko foreach: $data.answers -->
    <option class="someValue" data-bind="value: v, text: t"></option>
<!-- /ko -->
</select>

Selected: <span data-bind="text: selectedAnswer()"></span>

JavaScript

function ViewModel(){
    var self = this;
    
    self.answers = ko.observableArray([{t: "minus one", v: -1}, {t: "two", v: 2}, {t: "three", v: 3}])
    self.selectedAnswer = ko.observable();
        
}

ko.applyBindings(new ViewModel());