This is true (answer a), but also a very generic, vague statement. Creating a loop of some sort would be an example.
Answer:
A peer-to-peer (p2p) network provides a scalable and fault-tolerant mechanism to locate nodes anywhere on a network without maintaining large amount of routing state. This allows for a variety of applications beyond simple file sharing, including in multicast systems, anonymous communications systems, and web caches.
Explanation:
Not hard at all ma'am.
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Is it solar heat? ultraviolet heat? UV?
False electrons put off a negative charge