Which three actions can the code execute in the browser console?

The browser console (Developer Tools → Console) allows:

Running code unrelated to the page Developers can type arbitrary JavaScript not tied to the page’s logic. This is allowed → A is correct.

Viewing and modifying JavaScript code execution Using the Sources tab and console, developers can:

Inspect variables

Modify code at runtime

Set breakpoints Therefore → D is correct.

Viewing and manipulating the DOM From the console, developers can:

Query DOM nodes using selectors

Modify element properties and attributes

Insert or remove elements Therefore → E is correct.

Why the other options are incorrect:

B (security cookies) Many cookies have flags such as HttpOnly and Secure. Cookies with the HttpOnly flag cannot be viewed or modified via JavaScript or console. Therefore this is not guaranteed → incorrect.

C (performance report) The console itself does not provide a performance report. The Performance or Lighthouse tabs provide this, not the console. Therefore incorrect.

JavaScript Knowledge References (text-only)

Developer console can execute arbitrary JavaScript.

Console allows DOM inspection and manipulation.

Security cookies (HttpOnly) cannot be accessed via JavaScript.

==================================================