Refer to the exhibits.

The correct answer is D. The exact extract from the study guide says a revert operation “Reverts only the device database to the previous revision” and “Does not revert policies and objects—you must import them.” It further states: “Performing a revert operation followed by an installation only reverts device-level changes and does not revert policy packages.”

That exactly matches the CLI output. The device shows the device manager portion as installed and synchronized, while the policy package appears as unknown, which indicates the revert and installation affected the device-level configuration only. It did not reinstall or synchronize the policy package. Therefore B is incorrect. A is unsupported by the source, and C is unrelated because the firmware version is already shown in the device list output. The study guide also states that after revert you must use Import Configuration to synchronize policy information.