You are the network administrator for Alpine Ski House. The network consists of a single Active Directory forest that contains three domains named alpineskihouse.com， child1.alpineskihouse.com， and child2.alpineskihouse.com. The functional level of the forest is Windows Server 2003. Each domain contains Windows Server 2003 file and print servers. All of the file and print server computer accounts are located in the default Computers container in each domain. There is a central operations department that is responsible for administering the file server computer accounts in all domains. There is a separate operations department for each domain that is responsible for administering the print server computer accounts in that domain. You need to delegate authority to create an environment to support your file and print server administration requirements. You need to create an organizational unit （OU） structure to support the delegation of authority requirements. What should you do？（）

A. Create a top­level OU for file server computer accounts under the alpineskihouse.com domain. Create a top­level OU for print server computer accounts under the alpineskihouse.com domain.
B. Create a top­level OU for file server computer accounts under the alpineskihouse.com domain. Create a top­level OU for print server computer accounts under each domain.
Create a top­level OU for file server computer accounts under each domain. Create a top­level OU for print server computer accounts under each domain.
D. Create a top­level OU for file server computer accounts under each domain. Create a child OU for print server computer accounts under each file server O