Which of the following best defines the word model as it is used in the last paragraph of the selection

A．Sociologists are more concerned with explaining behavior than are psychologists.
B．Psychologists focus more on individuals than do sociologists.
C．Sociologists spend more time helping people solve their problems than do psychologists.
D．Psychologists are more interested in understanding patterns of human relationships than are sociologists.

A．find out the role taste preference plays in a person' s drinking
B．reveal which cola is more to the liking of the drinkers
C．show that a person' s opinion about taste is mere guesswork
D．compare the ability of the participants in choosing their drinks