Opowerful western fallen star! o shades of night -- o moody, tearful night! o great star disappear'd -- o the black murk that hides the star! o cruel hands that hold me powerless -- o soul of me! o harsh surrounding cloud that will not free my soul.(walt whitman, "when lilacs last in the dooryard bloom'd") these lines demonstrate what literary device? a) metonymy b) oxymoron c) apostrophe d) frame story

C) Apostrophe

Explanation:

Apostrophe is a figure of speech, most commonly found in plays, prose, and poems, in which a speaker addresses someone or something like an inanimate object or an abstract concept (especially one that is absent), usually with the purpose of showing their inner state or emotions. Furthermore, one common feature of this figure of speech is that it uses exclamations such as “O.” just like the lines use it.

In the lines provided, then, the poet Whitman is using apostrophe because he addresses inanimate objects like the fallen star, the night, some hands and a cloud, with the purpose of expressing his inner thoughts and emotions.