The answer to this is D. File Manager. The Standard Office Suite comes with a lot of programs that will be very useful for a lot of people. The word processor is one of the things that people use often. This is where people type their documents and do their different work. The image editor can also be used by people who work with images and graphics.
The database can be used for computations and for listing down various items in a more orderly manner. The file manager, on the other hand, is just in charge of managing the different files that can be saved through the different programs that are mentioned above. It will make it easy for people to locate the files they are searching for.