Final answer:
The sentence 'Your eyes are stars set in the evening sky, always shining, ever constant, guiding me to you' contains an extended metaphor comparing the student's eyes to stars.
Step-by-step explanation:
An extended metaphor is a literary device that compares two unlike things in detail over a sustained amount of text. In the given options, the sentence 'Your eyes are stars set in the evening sky, always shining, ever constant, guiding me to you' contains an extended metaphor. The comparison between the student's eyes and stars is sustained throughout the sentence, emphasizing qualities such as brightness and constancy. This metaphor helps to convey a deeper meaning and creates a vivid image in the reader's mind.
Learn more about Extended metaphor