Answer: D) Her ambition has led her to suffer tremendous guilt.
Step-by-step explanation: A tragic heroine is a female character who suffers from a tragic flaw that eventually causes her downfall. Lady Macbeth is considered a tragic heroine because she was very ambitious, she wanted to be Queen, so she planned with her husband to kill Duncan. But after murdering him she regretted her actions and she felt a tremendous guilt which led her to kill herself.