In the Context of Social Stratification, Which of the Following

In the context of social stratification, which of the following is a difference between U.S. culture and Japanese culture?

A) In Japan, businesspeople are very conscious of schedules, whereas in the United States, businesspeople view time as elastic.
B) U.S. culture has high power distance, whereas Japanese culture has low power distance.
C) Full-time work in Japan consists of 40 hours a week, whereas full-time work in the United States consists of 35 hours a week.
D) U.S. culture values accomplishment and achievement regardless of age, whereas Japanese culture values the wisdom and experience of age.