continution-

What could the value of the shared session key be, at the end of the following protocol: 1. AB:NA 2. BA:NB Choose all of the possible values below (assuming ' a ' is A 's secret number, ' b ' is B's secret number and ' p ' is a prime number known to everyone): 1- KpeBNAmodp 2- KpeANBmodp 3- NANBmodp 4- NBNAmodp 5- NAbmodp 6NBamodp 7NANBmodp 8- NBNAmodp Select one or more: 1. KprBNAmodp 2. KprANBmodp 3. NAN=modp Select one or more: 1. KpiBNAmodp 2. KprANBmodp 3. NANmodm 4. NBNkmodp 5. NAbmodp 6. NBamodp 7. NANBmodp 8. NBNAmod