Answer:
Top of the screen is the right answer for the above question.
Step-by-step explanation:
The address bar is found in any web browser which helps to search the content on the web. In this address bar, a user types the link or content which he wants to search on the web. Then the address bar link executes on the server and searches the content with the help of a search engine. That's why the address bar is necessary for every web browser.
If any user wants to see or type any think on the address bar then he should need to see the address bar on the top of any page of the browser or we can say that at the top of the screen of the system.
Hence top of the screen or top of the page is the right answer for the above question because the meaning of both lines is the same.