You are designing an Active Directory forest structure to meet the business and technical requirements.  What should you do？（）

• A、 Create a single forest that has one domain. Use OUs to separate the departments.
• B、 Create a single forest that has multiple domains to represent every department.
• C、 Create a single forest that has three domains： one for finance， one for HR， and one for the remaining departments.
• D、 Create multiple forests that have a single domain in each forest to represent the departments.