Not entirely sure about 1; I believe it's D. 2 is C, and 3 is A.
Answer:
A wave that has been digitized can be played back as a wave over and over, and it will be the same every time. For that reason, digital signals are a very reliable way to record information—as long as the numbers in the digital signal don’t change, the information can be reproduced exactly over and over again.
Explanation:
Stay off of social media (mainly instagram or maybe snapchat), put yur account on private mode so you can choose who can follow you.
Answer: No, is this the question?
Explanation: Have a stupendous day! <3
