Answer: C) "filled with sleeping birds."
Step-by-step explanation: Imagery is a literary device that consists in the use of figurative language or detailed descriptions in order to evoke the senses of the reader (sight, smell, taste, hearing, or touch) and to create a mental picture. In the given excerpt, the line that best illustrates visual imagery is "filled with sleeping birds" because it evokes the reader's sense of sight and creates a mental picture of the hair.