Which of the following cultural examples most likely indicates a larger change in the way people are thinking and acting?

The correct answer is C).

This is the correct answer because the statement is referring to "Japanese American families" in general terms, which indicates that a large portion of Japanese families are changing their eating habits.

All the other options refer to small changes, or individual people.

the only other powers were germany russia and uk and they were too busy fighting each other wearing each other down   that the us was becoming strong and they were becoming weaker