Amotif is
a. a recurring dominant idea, theme, or object in a work of literature
b. a descriptive word repeatedly used to define a character in an epic poem
c. when words imitate sounds
d. a reference to a mythological being

A motif is a recurring dominant idea, theme, or object in a work of literature.

That is the correct answer. 

Poets and writers always incorporate motifs in their works, some incorporate even more than one which adds a certain layer of complexity to their work and also adds to the appeal of a particular work. 

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