The reason the poet includes the metaphor "one black wing perched over her eyes" is to describe a prominent feature of Frida's face, as stated in option C.
The figure of speech known as metaphor is simply a comparison between things that are different. We use metaphors when we want to give thing A a quality that thing B possesses. For example, if someone says, "Your hair is the darkest night," they are using a metaphor to talk about the color of your hair and how dark it is.
In the poem we are analyzing here, the author uses the metaphor "one black wing perched over her eyes" to describe a prominent feature of Frida Kahlo's face: Her eyebrows. Frida's eyebrows were black and voluminous, enough to deserve the comparison to a "black wing".
With the information above in mind, we can choose option C as the correct answer.
The missing excerpt with the underlined phrase is the following:
This is for the woman with one black wing perched over her eyes: lovely Frida, erect
among parrots, in the stern petticoats of the peasant,
who painted herself a present—
wildflowers entwining the plaster corset
her spine resides in, that flaming pillar—
this priestess in the romance of mirrors.
Learn more about metaphors here:
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