Answer: D. Eating fried chicken with one's fingers.
Step-by-step explanation:
Chicken, in this case, serves only as an example, it can be any solid food. Some available data indicate that today over 3 billion people worldwide eat their food with their hands. Even today, it is quite natural to consume food with your hands in some cultures, something that goes without saying. On the other hand, in the United States and most European countries, consuming food by hand can be interpreted as unhygienic, leading to cultural misunderstanding.