For Part A, the correct answer is D. She is jealous that Peter is showing affection to someone else.
In Act II of "The Diary of Anne Frank," Mrs. Van Daan shows signs of jealousy towards Anne and Peter's growing relationship, as she perceives it as a threat to her own son's affection and attention.
For Part B, the quotation that best supports the answer to Part A is B. I don’t know what good it is to have a son. I never see him. He wouldn’t care if I killed myself.
This quote reflects Mrs. Van Daan's feelings of neglect and jealousy regarding her relationship with Peter, suggesting that her objections stem from her desire for attention and connection with him.