Why Has the Component Lifestyle of Many of Today's Consumers

Why has the component lifestyle of many of today's consumers proven to be such a challenge to marketers?

A) A consumer is defined by his or her lifestyle,which is defined by level of education attained and occupation.
B) The needs of people with component lifestyles are in constant flux.
C) There are no specialized magazines that reach small segments of markets.
D) Communication with people who have component lifestyles is very difficult.