Kimberly works as an IT support technician in a large corporation. Her department's next project is to upgrade the OS on all devices from Windows 10 to 11. More than 250 devices will need to be prepared and updated. You can choose the best statements that apply to an effective deployment strategy. 

a. The In-place upgrade method is the best strategy because all they would have to do is push the Microsoft Deployment Toolkit (MDT) to all network devices. 

b. The best strategy is to develop and deploy a standard image with Windows 11 OS to ensure a clean installation. 

c. The Windows Autopilot method is the best strategy because it runs the upgrade automatically when users log in, then manually upgrades devices that aren't assigned to users. 

d. The best strategy is to replace old Windows 10 devices with new Windows 11 ones to eliminate the possibility of system errors.