Final answer:
Acculturation involves the adoption of cultural elements from one culture to another. The internet's role in popularizing French hip-hop music in the United States is a textbook example of this process, demonstrating the flow of cultural ideas and practices across borders.
Step-by-step explanation:
The concept of acculturation refers to the process where individuals or groups from one culture come into contact with another culture and start to adopt the beliefs, practices, and norms of the host culture. The most likely example of acculturation from the provided choices is 'because of the internet, French hip-hop music becomes popular in the United States'.
This epitomizes how cultural elements like music can be transmitted and embraced across international borders, leading to a shift in cultural practices and preferences in the receiving culture. Other options describe scenarios related to workplace ethics, social expectations in professional settings, and educational content, which may not necessarily involve the blending of distinct cultural elements as directly as the popularization of French hip-hop in the U.S. does.