View the Exhibit and examine the attributes of an undo tablespace.    In an OLTP system, the user SCOTT has started a query on a large table in the peak transactional hourthat performs bulk inserts. The query runs for more than 15 minutes and then SCOTT receives thefollowing error:  ORA-01555: snapshot too old  What could be the reason for this error() 
A:The query is unable to get a read-consistent image.
B:There is not enough space in Flash Recovery Area.
C:There is not enough free space in the flashback archive.
D:The query is unable to place data blocks in undo tablespace
出自:Oracle认证