The answer is a POST Diagnostic Card.
Although not a necessity, a POST card can help discover and report computer errors and conflicts that occur when you first turn on a computer and before the operating system. To be able to understand how a POST card works, one needs to be very familiar with the BIOS. The power-on self test (POST) is a series of various tests performed by a computer when you turn it on. If you have any issues that conflicts with the operating system and prevents the computer from booting, you can install a POST card in the available expansion slots. This card will monitor the entire boot process and report errors in coded numbers on a small LED panel on the card.
Answer:
option d is the correct answer
No, this is not true. WebMD is a great example asking you of simple symptoms that you may be facing and your results could present an apparent fatal disease. This constantly scares the population of netizens whenever they would want a quick diagnosis online through these medical information sites. The best solution to your symptoms is to visit your family doctor or a licensed physician who will give you proper diagnosis checking your vital signs and other related information. Do not always trust the internet and the information it gives you as a user you must take the information with discretion before reacting inappropriately.
Answer: WIDE AREA NETWORK (WAN)
Explanation: hopes this helps