A customer has purchased three IBM System Storage DS8700 systems and would like to have their administrators trained.  Which training alternative provides the necessary training with the least financial impact（）

• A、purchase the training CD for the disk subsystem and have the staff do self-paced training
• B、have the IBM Service Support Representative perform the training
• C、contact IBM Education Services for an onsite training class
• D、send one person at a time to an IBM training session