I think it's b because "end application" would make the most sence
The common name for such a program is called a Web Browser. There exist several names for popular browsers, E-Internet Explorer, Mozilla FireFox, Google Chrome, Safari, etc. At the start of the internet, they were not always around, as the internet was mostly used for communications in the US armed forces. In the early-mid 1990's, the first few browsers were created when the first computer OS became mainstream. As the years have gone by, they have since become stronger and faster, and one can do anything on the internet from watching videos, opening a business, talking to your friend or even run a political campaign.
Answer: D. Searches for a file only in the directories that are in the path variable
a digital studio that is been live to all around the world