You work as a senior administrator at ABC.com. The ABC.com network consists of a single  domain named ABC.com. All servers on the ABC.com network have Windows Server 2012 R2 installed.You are running a training exercise for junior administrators. You are currently discussing spanned volumes.Which of the following is TRUE with regards to spanned volumes？（）

• A、Spanned volumes do not provide fault tolerance.
• B、Spanned volumes are a fault tolerant solution.
• C、You can extend a spanned volume onto a maximum of 16 dynamic disks.
• D、You cannot create a spanned volume using a system volume or boot volume.