Disabled binding not working for checkboxes generated with *ngFor

I have a list of objects that I want to bind to for checkboxes. The problem I'm having is that all of my checkboxes will be disabled when I only want to disable specific ones in the list. What is the proper way to setup the *ngfor and checkbox? Here I'm using the PrimeNg checkbox but if you know for a regular checkbox that would be a helpful stepping stone.

component.ts has this:

 this.options = [
            { name: "A", checked: true, disabled: true },
            { name: "B", checked: false, disabled: false },
            { name: "C", checked: false, disabled: false },
        ];

component.html:

<div class="form-group row">
    <span *ngFor="let test of options; let i=index" class="col-sm-4">
        <p-checkbox binary="true" [(ngModel)]="test.checked" label=""
            [ngModelOptions]="{standalone: true}" disabled=""></p-checkbox>
    </span>
</div>