Artisan is a worker in a skilled trade, especially one that involves making things by hand. So, according to these options, they most likely have:
A blacksmith - a person who makes and repairs things in iron by hand.
cobbler - a person who mends shoes as a job.
Artisans live off his own labor but also off the labor of others workers who work in his shop and use his tools. the artisan is a working class that has found a way to produce material goods without being part of the industry.