SOCIAL CLASSCOMPREHENSIONWhich of the following statements about social class is MOST ACCURATE?
选项：

A: Social class is purely a U.S. phenomenon.
B: Persons within the same social class do not exhibit common attitudes, lifestyles, and buying Behaviors.
C: Companies cannot use social class as a basis for describing a target market.
D: A person’s lifestyle, income level, and occupation determine his or her social class.
E: Social class is relatively permanent and homogeneous.