In challenge-response authentication, both the User ID (i. e., message 1) and the Challenge (i. e., message 2) are in cleartext, but why is challenge-response authentication still a secure authentication method that can defeat replay attacks?

Read these lines from beowulf.often scyld scefing seized mead-benches from enemytroops, from many a clan, he terrified warriors, even thoughfirst he was found a waif, best explains why the author includes this information in theexposition? a. to emphasize that a hero must learn to be fierceb. to remember the famous story of a popular heroc. to express sadness about losing the old heroesd. to see whether people still respect the old heroes