A corporation wants help in reducing backup costs. By proposing a library with LTO-5 drives,which one of the following would be the BEST reason to choose LTO-5 over LTO-4?（）

• A、WORM and encryption capability 
• B、offers sequential stream of batch data 
• C、offers ability to read and write multiple generation cartridges 
• D、lower cost per GB when compared to LTO-4