During maintenance of a relational database, several values of the foreign key in a transaction table of a relational database have been corrupted. The consequence is that: 
A、the detail of involved transactions may no longer be associated with master data, causing errors when these transactions are processed. 
B、there is no way of reconstructing the lost information, except by deleting the dangling tuples and reentering the transactions. 
C、the database will immediately stop execution and lose more information. 
D、the database will no longer accept input data.