Prior to the internal inspection, what should be the status of vessel internals?

The correct answer acknowledges that if no deterioration is expected from the vessel internals, they do not need to be removed prior to an internal inspection. This approach is aligned with the principles of risk-based inspection, where the condition and history of the equipment lead to a focused assessment of its integrity.

In instances where the vessel internals have been assessed and found to be in good condition with no signs of corrosion, wear, or other deterioration, keeping them in place can facilitate a more efficient inspection process. This can save time and reduce the risks associated with handling and reinstallation of internals, which can sometimes lead to additional wear or damage if not managed carefully.

The other choices do not consider the condition of internals or the purpose and methodology of the inspection process as effectively. Removing internals without assessing their condition could lead to unnecessary work and potential downstream complications.