Turn sadly to a adjective first: sad
Add most or -est
So it can be most sad or saddest
Answer:
Lady Macduff has a close and loving relationship with her son, which contrasts Lady Macbeth when she claims she would have 'dashed the brains out' of her own child. She is also upset by Macduff's abandon, which suggests that he may be more loyal to his country than his wife (the opposite of Macbeth).
Explanation:
It is important to understand why an author is writing something. As a reader, knowing the purpose or intent that the writer has for creating the piece of work helps you EVALUATE it better.