问题
                    
Could I hang out with my friends—___. You have to prepare for your math test.
                            A:Don’t worry
B:Sure, I’d love to
C:That’s too bad
D:No, I don’t know;
                        
                        B:Sure, I’d love to
C:That’s too bad
D:No, I don’t know;
正确答案是:
                        