The disc, digitally _________ in the studio, sounded fantastic at the party that night.     [ ]

A. recorded                        

B. recording    

C. to be recorded                    

D. having recorded

甲乙签订一份买卖合同，按照约定，乙应向甲运送一批货物，后因乙的库存不足，征得甲的同意，由丙代替乙向甲运送该批货物。甲验货认为质量不合格，应由乙丙向甲承担连带责任。 ( )