B. Once upon a midnight dreary, while I pondered weak and weary, Over many a quaint and curious volume of forgotten lore—
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-Payshence
The line that 'Once upon a midnight dreary, while I pondered weak and weary, Over many a quaint and curious volume of forgotten lore' helps to create the dark and gloomy tone of the poem.
The expression of attitude of the poet in a poem, which may be assisted by the characters in the poem and helps in describing the mood of the poem, is known as the tone of the poem.
'The Raven' is a poem where the tone is constant in the lines of midnight dreary where the tone becomes dark and gloomy.
Hence, option B holds true regarding the tone of the poem.
Learn more about the tone of the poem here:
https://brainly.com/question/20819029
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