Final answer:
The example of Japanese schoolchildren eating McDonald's frequently is an example of acculturation.
Step-by-step explanation:
The example of Japanese schoolchildren eating hamburgers and french fries from McDonald's frequently is an example of acculturation. Acculturation refers to the process by which one culture adopts or assimilates elements of another culture. In this case, the spread of McDonald's restaurants and the popularity of their fast food in different countries demonstrates the influence of American culture on the eating habits of people around the world.