Can you please show me the stanza?
Lady Macbeth influenced Macbeth's decision to murder Duncan by being manipulative and questioning Macbeth's status as a man. She claimed that she would have "plucked the boneless gums out of her nipple" if she had promised it to Macbeth. This prompts Macbeth to follow through with his promise when he said he would murder Duncan earlier.
She asks him if he would rather be a coward than seize an opportunity to achieve the "ornament" of life - the crown. Additionally, Lady Macbeth says that she cannot love a man who is not willing to have the integrity to do such a thing, this really persuades him as they do share a passionate bond throughout the play.
Hope I helped!
When it is published on the open market
Quotations add emphasis to ideas, so A is out. If quotations add emphasis to ideas then they also add strong support to claims therefore C is out. Quotations add credibility to writing as well so D is out. Therefore B is the right answer, you would not include direct quotations in a story to add length to a boring story.