A customer has purchased three IBM System Storage DS8300 systems and would like to have their SAN and storage administrator trained. The customer is worried about having much of their staff out of the office at the same time attending courses.  Which training alternative provides the necessary training with the least 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