Linguist: Most people can tell whether a sequence of words in their own dialect is grammatical. Yet few people who can do so are able to specify the relevant grammatical rules. Which one of the following best illustrates the principle underlying the linguist's statements? ['Some people are able to tell whether any given piece of music is a waltz. But the majority of these people cannot state the defining characteristics of a waltz.', 'Quite a few people know the rules of chess, but only a small number of them can play chess very well.', 'Engineers who apply the principles of physics to design buildings and bridges must know a great deal more than do the physicists who discover these principles.', 'Some people are able to write cogent and accurate narrative descriptions of events. But these people are not necessarily also capable of composing emotionally moving and satisfying poems.']