Which of the following options is incorrect about the memory description in Fusion Compute?

When the memory hot add strategy is enabled, reduce the memory value and need to modify it offline

When the memory hot add policy is not enabled, the virtual machine increases the memory value and needs to be restarted to take effect

When the memory hot add policy is not enabled, it needs to be modified offline when adjusting the memory QoS

When the memory hot add policy is enabled, increase the memory value and take effect online