Tape streaming is not happening while performing RMAN tape backup. On investigation, you find that it is not because of the incremental backup or the empty file backup and that RMAN is sending data blocks to the tape drive fast enough.What could be a solution to make tape streaming happen during the backup?（）

A. onfigure backup optimization

B. onfigure the channel to increase MAXOPENFILES

C. onfigure the channel to increase the capacity with the RATE parameter

D. onfigure the channel to adjust the tape buffer size with the BLKSIZE option