There 4 options for this question:
a. software
b. hardware
c. data
d. All of the above
Explanation:
The correct answer, in this case, is d. All of the above, because if we want to make complete system information we must have software, hardware, and data, for example:
Social media is a software, and we must have cellphones (hardware) even behind the app there are servers and other kinds of hardware to manage the social media, the data complement all of this, it could be user information, videos, images, etc.
Answer B (Data storage system)
The answer is an Intruder Prevention System (IPS). An Intrusion Detection System (IDS) will detect an attack but will not block it.