Read the poem and answer Questions 26 to 30. Oft in the stilly night Ere slumber's chain has bound me Fond memory brings the light of other days around me: The smiles, the tears of boyhood years. The words of love then spoken; The eyes that shone How dimm'd and.gone The cheerful hearts now broken! Thus in the stilly night Ere slumber's chain has bound me. The theme of the poem is presented essentially through ________
A. assonance B. contrast. C. paradox D. repetition