For the answer to the question above, the obstacles that an immigrant he/she might need to overcome are,
Leaving friends
Leaving family members
Embracing new Religion especially if you are migrating to Eastern Country or where the majority's religion is Muslim.
Finding the way around the city
and maybe learning the new language because you don't know if the stranger is already mad at you if you don't understand what is he talking about.
Answer: <u><em>life</em></u>
--- No explanation necessary ---
The correct answer is performance art.
Performance art usually involves the performer's body in all sorts of situations - in this case, the performer literally used her own body as the 'canvas' for her art because she wanted to prove some artistic point. She is a controversial artist, and not everybody understood her.
