Final answer:
The Blaster Worm is the correct answer; it is known for copying itself across a network and exploiting vulnerabilities in Microsoft platforms.
Step-by-step explanation:
The computer worm referred to in the question that copies different segments of itself to computers linked together in a network is the d) Blaster Worm. Computer worms are a type of malware that replicate themselves to spread to other computers. Unlike viruses, worms do not need to attach themselves to a host program. The Blaster Worm, also known as Lovsan or MSBlast, was a notorious example that exploited vulnerabilities in Microsoft platforms to propagate and perform denial-of-service attacks.