Speaker A: Mary wont be coming to work tomorrow.Shes finally going to the photography exhi

Speaker A: Mary wont be coming to work tomorrow.Shes finally going to the photography exhibit.Speaker B: Oh, then she managed to get tickets after all. Speaker A:______.

A．I"m sure she did

B．After all, she has been trying to get them

C．I think she"ll try to get tickets after work

D．She mustn"t have any difficulty getting tickets

请帮忙给出正确答案和分析，谢谢！