依下文回答第 21 題至第 25 題Culture is a word that everyone is familiar with, but its precise meaning can be elusive. A usefuldefinition by noted social scientist Geert Hofstede is that culture consists of shared mental programs thatcondition individuals’ responses to their environment. There are three levels involved in the mentalprograming: The deepest level--human nature--is based on common biological reactions, such as sex, drive,hunger and territoriality that all members of the human race have in common, even though they come fromdifferent cultures. The middle level--culture--is based on common experiences that we share with a particulargroup of our fellows. Cultural values, attitudes and assumptions about proper behavior give us something incommon with a definable group of others, but not with all of them. The group may be a very large one, suchas a national population, i.e. Japanese culture; or a very small one, i.e. the culture of the committee of a localparent-teacher association. The shallowest level--personality--is based on the specific genetic makeup andpersonal experiences that make each of us a unique individual. For example, we may be sociable orintroverted, aggressive or submissive, and emotional or stable. We all have many behaviors andunderstandings that are quite different from those of others, even though we come from the same culture.Culture also has the following basic characteristics. First, culture is mental programming that a grouphas in common that is not normally available to people outside the group. Second, the mental programing ofa group is learned by its members over long periods as they interact with the environment and with eachother. Third, the mental programming involved is strong. People have a hard time escaping their culture evenwhen they want to. Fourth, culture is not random as it is a system of values, attitudes, beliefs, and meaningsthat are related to each other and to the context. Last, much of culture is concealed. Besides immediatesurface behaviors, such as body language, and physical artifacts like art, culture also involves the underlyingvalues, social structures, and ways of thinking.
21 What is the main purpose of the passage?
(A)To explain what culture means.
(B)To describe how culture may develop.
(C)To explicate what values culture may have.
(D)To discuss what potential effects culture may exert.