Which of the following refers to programs that install themselves on computers without the users' knowledge or permission and spread by attaching themselves to other files that are transferred from computer to computer? a. spyware applicationsb. computer wormsc. computer virusesd. freeware applications

The correct answer is C "Computer Virus"

Explanation:

Computer virus is a piece of code that install itself in a computer without the knowledge and permission of the user and start replicating itself and as it execute it self also start damaging the computer files.

Computer virus have ability to replicate itself and it attached to files and move from one computer to another with these files when files are transferred.

answer: a, c

divide any of the y values by x values and you will always get 3 is the most simple way i can put it for you.