Which of the following best describes a key difference in communication customs between the past (e.g., early 20th century) and the 21st century?
A) People in the past preferred face-to-face conversations, while today everyone uses only text messages.
B) In the past, formal letters were common for important news, whereas today instant messaging and email are widely used for both formal and informal communication.
C) Telephones were the primary means of communication in both periods.
D) People in the past had more privacy in their communication than people do today.
E) Social media was equally popular in both eras for sharing personal updates.
