Dear Belle, Thanks for the nice invitation. However, I can't come to the slumber party on Saturday. Bill has some serious problems with his classmates. You know, he counts on me and he needs my help. That's why, I'm going to talk to his friends at a café. Why don't you come over to watch a DVD on Sunday evening? Thanks for your understanding. Take care, Ingrid In Ingrid's e-mail, there is NO information about_____. A) when Belle's slumber party is B) why she can't accept Belle's invitation C) what type of event Belle is organizing D) what time she is going to meet Bill's classmates​