下列作品中，可以称为具有“双重版权”的是（）

A：委托作品

B：职务作品

C：汇编作品

D：合作作品

Man: Thank you for your helpful assistance. Otherwise, I’d surely have missed it. The place is so out of the way.
Woman: It was a pleasure meeting you. Good-bye.
Question: Why does the man thank the woman().

A. She promised to help the man.

B. She came a long way to meet the man.

C. She took the man to where he wanted to go.

D. She suggested a way out of the difficulty for the man.