Read the text below and answer the question. "In the early 20th century, communication was vastly different from today. Telephones were not common in every household, and long-distance calls were expensive. People relied heavily on letters, which could take days or even weeks to reach their destination. News traveled slowly, often through newspapers or word-of-mouth. Radio began to gain popularity in the 1920s, bringing news and entertainment directly into homes, but it was still a far cry from the instant global communication we experience now." According to the text, what was a common way for people to communicate long distances in the early 20th century before widespread telephone use?
A) Video calls