with an E or an 1.) $3. Eight friends, including Alice and Bob, randomly stand in a line to take a picture. (a) How many different arrangements are possible? (b) Alice and Bob are best friends and want to stand next to each other. Determine, with justication, how may different arrangements of the eight friends are possible if Alice and Bob are next to each other. (c) What is the probability that Alice and Bob are next to each other in lineL