单选题A customer asked a consultant to create the infrastructure for an application. The application is designed to charge customers for conferencing services based on usage. To determine if a Storage Area Network （SAN） is the best storage solution， which
题目内容(请给出正确答案)
单选题
A customer asked a consultant to create the infrastructure for an application. The application is designed to charge customers for conferencing services based on usage. To determine if a Storage Area Network （SAN） is the best storage solution， which of the following questions is most appropriate？（）
A
Will the application require a database？
B
Which operating system does the application require？
C
Will the data need to be backed up in real time？
D
Does the application share data among the servers？
