Consider the following challenge-response mutual authentication protocol between Alice, a client, and Bob, a stateless server that does not remember values from a previous round of authentication exchange. R is a random number used by Bob which has the property that the probability of its being repeated is 0. KAB is a secret key that is known only to Alice and Bob and will never be known by anybody else. Choose the correct answer from the following 5 points Hello, I am Alice. la that you, Bob? Yes, I am. Random # R. KAB(R-1) Done, we have authenticated each other Alice (a) This is a correct mutual authentication protocol. This is because, only the real Alice will be able -1) to Bob's challenge to successfully generate the response KABR (b) This a correct authentication protocol in the sense that it successfully authenticates Alice to Bob, though it does not authenticate Bob to Alice. This is because only the real Alice will be able to generate the response KABR 1 to Bob's challenge (c) This is a completely incorrect authentication protocol. This is because, anybody can replay the response message KABR1 claiming that it originated from Alice. Since Bob is a stateless server, it will not remember the value R that was sent and hence will not able to detect a replay of KABIR-1