Answer:
C. led to the rapid spread of ideas and culture.
Step-by-step explanation:
C. The development of technology has led to the rapid spread of ideas and culture in the 20th and 21st centuries. Advances in communication technology such as the internet, social media, and mobile devices have made it easier for people to share information and ideas across the globe, leading to increased cultural exchange and interaction. This has also contributed to the growth of a global economy, with increased trade and the exchange of goods and services across borders. Therefore, option C is the correct answer.
Options A, B, and D are incorrect. Cultural convergence refers to the process by which different cultures become more similar to each other over time, and while technology may facilitate this process, it has not eliminated it. Furthermore, communication has become increasingly important to the world economy, as it enables faster and more efficient transactions and enables businesses to reach customers and partners around the world. Finally, technological development has not resulted in countries becoming more isolated, but rather has enabled greater connectivity and interaction among people from different countries and regions.