When will the function Hello() be called based on the given code with an onclick event?

The function Hello() will be called when the user specifically clicks on the second paragraph on the page. This indicates that the code is likely set up such that the onclick event is directly associated with that second paragraph.

In an HTML document, event handlers such as onclick are typically attached to specific elements, meaning that a function will only be invoked when the designated element is interacted with in the specified way, in this case, through a mouse click. Therefore, selecting the second paragraph implies that the onclick event is set there, ensuring that the Hello() function is executed upon that action.

The other circumstances don't trigger the function in this scenario. For example, if the function were tied to all paragraphs, it would be activated by clicking on any of them, which is not the case here, as it specifically pertains to the second paragraph. Similarly, merely hovering over a paragraph would not call the function since it requires a click event. Lastly, stating the function is never called is incorrect because there is a predefined condition (the click on the second paragraph) that leads to its invocation.