A famous artist once claimed that all great art imitates nature. If this claim is correct, then any music that is great art would imitate nature. But while some music may imitate ocean waves or the galloping of horses, for example, most great music imitates nothing at all. Which one of the following most accurately expresses the main point of the argument? ['Music is inferior to the other arts.', 'Like some great music, some great painting and sculpture may fail to imitate nature.', 'Sounds that do not imitate nature are not great music.', "Either the artist's claim is incorrect, or most great music is not great art."]