What are the speakers talking about？A．Cyril and his marriage.B．Ibsen and Butler"s marriage

What are the speakers talking about？

A．Cyril and his marriage.

B．Ibsen and Butler"s marriage.

C．Aunt Celia and her marriage.

D．Katharine"s mother and the marriage.

请帮忙给出正确答案和分析，谢谢！