A small bio-technical company is interested in implementing a 32-node Linux cluster. They developed their own software that allows all of the nodes to work on the same problem at the same time. The application requires messages to be passed between the nodes. Each node will require access to a shared storage pool of around 500GB. To identify throughput requirements for the storage pool， which of the following is the most appropriate question to ask？（）

A. Is high availability required？
B. Which network protocols are going to be used？
C. What are the expected I/O’s per second to the storage？
D. To what network infrastructure is the storage pool connected？