One type of captcha is a rootkit virus the wavy hard-to-read letter and number sequence that you type to prove that you are human to a website a password method antivirus software

Explanation:

Rootkit virus is one type of virus which is hidden about its existence and tries to affect the maximum number of system.

Password method: This is a graphical method to identify the text hidden in the signature and confirming that it is not a robot or any other system to protect the system from hacking. This would be really hard-to-read and thus ensures safety.

Antivirus software: This is a system to protect the system, when the virus tries to attack the system. An indication will be given through the software to the user.

c. would be your answer.

mark brainliest if correct! hope i .

the answers

1. video

2. net

3. cloud

4. optical

5. rambus

hope it