Answer:
embedded system
Explanation:
Based on the scenario being described within the question it can be said that the type of software that is being described is known as an embedded system. This is actually a combination of both hardware and software that focuses on a specific function which is later implemented into a much larger system to allow it to become "smarter", by performing more complex tasks, which would otherwise not be possible.
The answer to your question is,
D. Toggle Filter. You don't want to remove the filter, you just want to see the difference.
-Mabel <3
Commerce Server
An application program that runs on a server tier computer. A typical commerce server obtains product data from a database, manages items in users' shopping carts, and coordinates the checkout process.
