What are the 3 best scenes to show macbeths/lady macbeths progression of ambition and power?

Question

What are the 3 best scenes to show macbeths/lady macbeths progression of ambition and power?

Answer 1

1. the scene where she receives the letter from Macbeth and decides that she wants to kill Duncan

2. The scene where she basically tells Macbeth he isn't a man unless he kills him and that if she promised him she would kill her own baby.

3. (if you want to show how her guilt and ambition destroyed her) the scene where she sleep walks and has hallucinations about red spots on her hands.