A museum professional has been working extended hours to remove dirt and grease that a vandal left on a painting. This Professional is most likely an

A conservator.

art conservator or a painting restorer.

To arrive at this conclusion, we can break down the scenario and make some informed assumptions:

1. The professional is working in a museum: Museums are institutions that preserve and showcase artwork, historical artifacts, and cultural objects.

2. The professional is removing dirt and grease from a painting: This task requires specialized knowledge and skills in the field of art conservation or restoration.

3. The dirt and grease were left by a vandal: A vandal is someone who deliberately damages or defaces property, including artworks.

Based on this information, we can conclude that the professional is most likely an art conservator or a painting restorer. These professionals are trained in the techniques and materials needed to clean, repair, and restore artwork, ensuring its preservation and longevity. They work closely with curators, museum staff, and other experts to maintain the integrity and aesthetic value of the paintings in their care.

art conservator or paintings restorer