you are the it administrator for a corporate network. you have just installed active directory on a new hyper-v guest server named corpdc. you have created an active directory structure based on the company's departmental structure. while creating the structure, you added a workstations ou in each of the departmental ous. after further thought, you decide to use one workstations ou for the entire company. as a result, you need to delete the departmental workstations ous. in this lab, your task is to delete the following ous on corpdc: within the marketing ou, delete the workstations ou. within the research-dev ou, delete the workstations ou. within the sales ou, delete the workstations ou.