Would you choose to implement a workgroup or a domain?

Can somebody help me out with this please? I know that it should be a workgroup. But if I am wrong please correct me about what it should be. I am still new to this part of Networks. You have just been contracted to provide computer support for Maxsell Realty, a small local real estate company. When you arrive on-site, you have a conversation with Alice Maxsell, owner and office manager. Alice informs you that in addition to her machine running Microsoft XP, that there are an additional 20 agents onsite, all with machines running Microsoft XP. There is a laser printer and a fax machine in the office as well. Alice tells you that there are two major issues she would like you to address for them: • The office's sole printer is currently connected only to Alice's computer. Their current work-around is to have agents e-mail their documents to Alice as attachments so she can in turn print them out. This is becoming very time-consuming for her. • Alice wishes to implement a new policy that requires her agents to share information with each other regarding clients and available properties. (a) What are the advantages of your selection? If you choose a domain, what else would need to be installed? What version of Windows Server 2003 would be best in this situation? What issues will help determine the types of connections needed between the offices? (b) Describe your proposed general network design and the role of connectivity devices. (c) Would a directory services network more likely meet the organization?s needs than a peer-to-peer network, and why or why not?