Before Duncan’s arrival, Lady Macbeth gives Macbeth some advice.

How does her advice move the plot forward?

Her advice to kill Duncan and his sons all at the same time helps Macbeth recognize the dangerous consequences of his actions.

Her advice to commit the crime only after Duncan is asleep helps Macbeth to avoid feelings of guilt over the murder.

Her advice to include Banquo in the plot helps ensure that others suspect Duncan’s sons rather than Macbeth after the murder.

Her advice to not let his face reveal his true intentions helps Macbeth conceal his plan to kill Duncan.