Final answer:
A DDoS (Distributed Denial of Service) attack involves using multiple compromised systems to flood the victim's network with traffic, overwhelming their resources. So the correct answer is Option B.
Step-by-step explanation:
The type of attack that uses more than one computer to attack the victim is known as a Distributed Denial of Service (DDoS) attack. In a DDoS attack, multiple compromised systems, which could include computers and other networked resources such as IoT devices, are used to target a single system. The goal is to overwhelm the target with a flood of internet traffic, which is significantly more challenging to mitigate compared to an attack from a single source.