The middle class is hard to define; in part, being “middle class” is more than just economic position. By far the majority of Americans identity themselves as middle class even though they vary widely in lifestyle and in resources at their though they vary widely in lifestyle and in resources at their disposal. But the idea that the United States is an open-class system leads many to think that the majority have a middle-class lifestyle because, in general, people tend not to want to recognize class distinctions in the United States. Thus, the middle class becomes the ubiquitous norm even though many who call themselves middle class have a tenuous hold on this class position.
According to the paragraph 5, why do most people identify themselves as middle class in the United States?
A, They have about the same lifestyle as everyone else in the country.
B, They prefer not to admit that there are class distinctions in the United States.
C, They do not really know how to define their status because it is unclear.
D, They identify themselves with the majority who have normal lifestyles.