Street art is often illegal because each building is owned by someone and when someone tags a wall, it's vandalizing that building and that persons property. Hope this helps!
Answer:
Anybody except these 10 artists listed: Aubrey Beardsley, Gustav Klimt, Alphonse Mucha, Henri de Toulouse-Lautrec, Egon Schiele, Antoni Gaudí i Cornet, Victor Horta, Louis Comfort Tiffany, Émile Gallé, and Louis Majorelle
Explanation:
The reason why is because these were the main set people. If its multiple choice look for the answer without any of these names! Please mark this as the brainliest and give a thanks and 5 star vote! Thank you, Hope it helps!