Lady Macbeth is an example of pure ambition in the play. She, and not her husband, is the mastermind behind the plot to kill the king. Lady Macbeth comes up with the plan to murder the king once she discovers that he will be a guest in her home.
Explanation:( I don't know sorry
A shift in thought can be indicated by the use of C. an em dash.
An em dash is used to set of an interruption that is closely relevant to the sentence but is not grammatically part of it. These set of interruptions can be found in a list, illustration, restatement, shift in thought or tone, summary, or dramatic point.
Semicolon (;) is used to connect independent clauses.
Ellipses (. . .) are used to indicate that material is missing in the sentence or passage.
