Read the excerpt. Then, answer the question(s).
Helen, thy beauty is to me
Like those Nicean barks of yore,
That gently, o'er a perfumed sea,
That weary, way-worn wanderer bore
To his own native shore.
On desperate seas long wont to roam,
Thy hyacinth hair, thy classic face,
Thy Naiad airs have brought me home
To the beauty of fair Greece,
And the grandeur of old Rome.
--from "To Helen" by Edgar Allan Poe
Which word signals the use of a simile in the excerpt?
a. like
b. that
c. as
d. to