—I'm free tomorrow. I'm going to play basketball. Will you go with me?   

—I'd love to;       I have to finish my report first.

A. or            B. so            C. but          D. and

—I'm free tomorrow. I’m going to play basketball. Will you go with me?

—I’d love to, 　　I have to finish my report first.

A. or 　　　　　 B. so　　 　　　　 C. but　 　　D. and