Final answer:
Sylphs mentioned in Canto 1 of a poem are not associated with any of the given options. Instead, they are mystical beings known as air spirits.
Step-by-step explanation:
Sylphs are creatures mentioned in Canto 1 of a poem. They are not associated with any of the options given (a literature, b poetry, c art, d mythology). Instead, they are mystical beings known as air spirits. In the poem, they are described as airy and light, similar to spirits. However, before becoming spirits, they are said to be sylphs, which indicates their transformation from one form to another.