Which one of the following sentences is an example of a metaphor? a. the breeze blew the branches back and forth. b. i am a rock. c. i'm as hungry as a wolf. d. she eats like a bird.

B is the metaphor, which contains the direct statement of "being" an inanimate object. C and D are similes, with the key words "as" and "like" indicating similarity. A is more of personification, where the breeze acts like a person in making the branches move.