I cannot see the list so I couldn't tell you
This is an opinion so I’m pretty sure you can choose whatever. As long as it falls under that category. Correct me if I’m wrong
B. fresco
Fresco (plural frescos or frescoes) is a technique of mural painting executed upon freshly-laid or wet lime plaster.
work·er
/ˈwərkər/
Learn to pronounce
noun
1.
a person who does a specified type of work or who works in a specified way.
"a farm worker"
2.
a person who produces or achieves a specified thing.
"a worker of miracles"
Hope i helped!