Answer:
The correct answer is - culture shock.
Step-by-step explanation:
Culture shock is an experience a person or anthropologist may have when one transfer to a cultural environment that is distinct or vary from their own culture.
The anthropologist in this question is experiencing alienation feeling, trivial when he move to new field site, he is experiencing cultural shock. It is also cause disorientation a person.
Thus, the correct answer is - culture shock.