Research on Cultural Differences Indicates That ____

Research on cultural differences indicates that ____.

A) they are far greater, especially with respect to essentials like eating and reproduction, than previously believed
B) they more often reflect differences in degree rather than opposites; for example, people are attracted to others who are similar to themselves
C) they are predominantly related to economic development and decrease as individual wealth increases
D) they are becoming increasingly large and divisive when the level of communication across cultures increases