从方框中选出适当的句子，补全对话。
A: I will work on my paper about cultural differences in wedding ceremonies.
B: That’s great.          
A: One difference is that brides throw their flowers at the end of their wedding.
B:        
A：Another difference is that the groom should not see the bride in her dress before the wedding day.
B:           
A: That’s supposed to be bad luck.
B: Thank you. See you next time.
A:            

A. You’re welcome. See you. B. Why is that? C. Can you tell me about some differences in wedding ceremonies? D. What would be another difference?