Answer:2.Sue and Shae are waiting for Roy at the movie theater. Both of them are carrying cell phones with Internet connectivity.
3. Serena and Sharon are doing their math homework in their own homes. They need help from each other to complete the task.
Explanation:Instant messaging is a method used to send chats or notes to a friend back and forth when both people are online.
In both these two scenarios , these friends can actual communicate or send messages to each other instantly and they can all be online and chat to each other back and forth. In scenario two friend have their phones with them and have access to the internet so are likely to be online and talk to their other friends as they wait.
Serena and Sharon are also on the same schedule they can both be online at the same time in order to complete their assignment.
Instant messaging allows you to interact with multiple people all at once and anyone who is in your friend list , the messages keeps popping in screens of each friend.
Instant messaging has the following features:
a.Chat - it opens up a space where friends can chat
b.Instant messages - sending a message and getting a response immediately.
c.Sharing web links one can share a link to a friend like a solution link that Selena can share with Sharon as they do their homework.
e.Video sharing .
f.Files can be shared also through instant messaging like when friend are doing a homework together.
Images can be shared.
Scenario 1 is diffrent because Jane has a diffrent schedule she is less likely to be online at the same time as Jane and Joey so instant messaging will be less useful in this case since she will not reply instantly .