D. All of the above.
All of the above can be injected as dependency.
Custom directives are used in AngularJS to extend the functionality of HTML.
ng-app directive defines and links an AngularJS application to HTML.
currency filter is applied to an expression using pipe character.
In AngularJS, Scope contains the model data.
There is a controller which takes single parameter. We call it . . . . . parameter.