What is the definition of positive effect

Read the excerpt below and answer the question.she dwelt among the untrodden waysbeside the springs of dove,a maid whom there were none to praiseand very few to love: a violet by a mossy stonehalf hidden from the eye! fair as a star, when only oneis shining in the sky.she lived unknown, and few could knowwhen lucy ceased to be; but she is in her grave, and, oh,the difference to me! (wordsworth, "she dwelt among the untrodden ways")which option best explains how the choice of the word oh in the final stanza contributes to the poem's meaning? it was selected to create a regular end rhyme.it was selected to establish assonance in the line.it was selected to maintain the line's iambic structure.it was selected to stress the poet's sense of loss.

Need this asap what would be some of the drawbacks of using a specific dramatic structure such as freytag's pyramid?

In ralph ellison’s “the black ball” the narrator of the story stretches the truth or lies several times what do you think it is his motivation for being so untruthful