Which of the following types of malware is self-replicating within computer systems and may have a payload which can delete, encrypt, and/or email files on the host computer? a. Trojanb. Rootkitc. Wormd. Backdoor

The answer is "Worm"

Explanation:

Worm is a kind of malware, which primarily infects certain machines whereas remaining on compromised devices. It replicates the malware, which itself to uninfected by computers, and certain options were wrong which can be defined as follows:

In option a, It specifically targets the android devices. In option b, It is intended to cover up other processes. In option d, It is used in unauthorized remote access.