In terms of its tone and form, the passage can best be characterized as ______.

单项选择题The author mentions the work of Ornette Coleman in the fourth paragraph in order to ______.

单项选择题The primary purpose of the passage is to ______.

单项选择题According to the passage, a major difference between Coltrane and other jazz musicians was the ______.

单项选择题Why knights fought bravely to win kingdoms rich with diamonds

单项选择题Most diamonds can be found ______.