Final answer:
A collection of bot-infested computers is known as a botnet, but the term used is a 'Hive'. Botnets are networks controlled without the owners' knowledge for malicious purposes.
Step-by-step explanation:
A collection of bot-infested computers is often referred to as a botnet. The correct option to which term describes this collection is option c) Hive. However, the term botnet is more commonly used in cybersecurity. A botnet is a network of private computers infected with malicious software and controlled as a group without the owners' knowledge, e.g., to send spam messages or to launch cyber attacks.