You have been assigned to compose an expository essay about the bluebird's migratory habits. Given that you must assume a formal tone, which of these choices would NOT be appropriate to use? A) The bluebird's migratory habits are fascinating and complex. B) Bluebird's migratory habits differ from those of other birds. C) If I were a bluebird, what a fantastic and amazing life it would be! D) Bluebirds migrate to find better weather and more promising resources.