听力原文：M: What are you and your sister going to do for your holiday this year？W: I'm thi

听力原文：M: What are you and your sister going to do for your holiday this year？

W: I'm thinking of taking her for a tour abroad, but she can't very well leave her children. What are you doing？

M: We shall go to the sea. I wanted to go to the mountains, but I gave up when my wife insisted.

W: Leaving the rest of the family behind, I suppose!

M: Why do you think so？

W: You used to spend holiday, alone before.

M: Yes. They'll be quite safe with their grandmother. Last year, I left them to a nurse, and my youngest son got ill.

W: You really shouldn't have done that. When are you leaving？

M: Next Thursday. We have to send the children to their grandmother first, and maybe we'll stay a day or two there.

W: I hope you have a good time.

M: Thank you. But why don't you change your mind and join us？ Making a large party will be great fun.

W: For my own part, I should love it. I'll talk it over with my sister, and see what she thinks about it.

Why can't the woman decide to go abroad？

A．She doesn't have enough money.

B．She doesn't know which country to go to.

C．Her sister doesn't like foreign countries.

D．Her sister doesn't want to leave her children.