Which of the following statements highlights a significant difference in social customs between the past (e.g., 19th century) and the 21st century regarding public interactions?
A) People in the past rarely interacted with their neighbors, unlike today.
B) Formal greetings and strict etiquette were more common in public in the past, whereas today interactions are generally more informal.
C) Public gatherings were non-existent in the past, but are frequent now.
D) People in both eras preferred to stay indoors rather than socialize publicly.
E) The concept of privacy was completely unknown in the past.
