Read the poem below and answer the question.
The courage that my mother had
Went with her, and is with her still:
Rock from New England quarried;
Now granite in a granite hill.
The golden brooch my mother wore
She left behind for me to wear;
I have no thing I treasure more:
Yet, it is something I could spare.
Oh, if instead she’d left to me
The thing she took into the grave!—
That courage like a rock, which she
Has no more need of, and I have.
(Edna St. Vincent Millay, “The Courage My Mother Had”)
In the poem above, who is the speaker?
a mother
a father
a son
a daughter