Task: Dialogue Generation
Input (English): M: I heard you didn't have a lot of shoppers at your year end sale! ,F: That's right. I'm certain more people would have come if I had advertised the sale.
(A) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (B) M: Lily also had not advertised the sale, but she owns a lot of shoppers. (C) M: Yes, it is a pity you had not advertised the sale. (D) M: I will not go shopping in the shopping mall, I will buy goods online.
Output (English): C