What file organization would require that all the five (5) records be read before the 6th record is written?

The file organization that would require that all the five (5) records be read before the 6th record is written is "Sequential access file". In a sequential access file, the records are arranged in a sequential order, and the access to the records is done sequentially one after the other, starting from the first record. Therefore, to write the 6th record, all the previous records must be read first, and the write operation can only be performed at the end of the file. This makes it time-consuming and inefficient for applications that require frequent insertions and deletions. On the other hand, in a direct-access file, random access file, and index sequential file, the records can be accessed randomly, allowing for faster read and write operations.