How does the emulated view encapsulation mode handle CSS for a component?

Which of the following directives removes or recreates elements of the DOM tree?

A developer def‌ines an image tag whose source is evaluated through a binding expression ()- In relation to the image load event, which of the following statements is/are true? 1) A 404 error will be reported by the image tag initially. 2)To prevent the 404 error, ng-src can be used instead of src. 3) ng-src sets the src value of the image as soon as the corresponding binding value gets evaluated.

Choose the function that can execute an expression from outside of the Angular framework.