Answer:
D. The word processor automatically opens the system default web browser and displays the document.
Explanation:
It doesn't matter if the default Web browser is already open or not, or if another browser than the default one is open.
The word processor will try to open the browser and tell him to display the document. Normally, if the browser is already open, it will simply display the document in a new tab. In some occasions, depending on the browser's functionality or its settings, it will create a brand new instance and create another opened copy of itself to display the document.