Which step below is one that a conservator must take to preserve or restore art?

One step that a conservator must take to preserve or restore art is:

1. Documentation and assessment: The conservator must thoroughly document the art piece's current condition, identifying any damages, deterioration, or alterations. This step involves conducting a detailed examination, sometimes with the aid of specialized equipment, to understand the artwork's materials, techniques, and overall stability. This documentation serves as a baseline for tracking changes and evaluating the effectiveness of the conservation treatments applied in the future.