You are designing a Windows Azure application that will store data. You have the following requirements：   - The data storage system must support the storage of more than 500 GB of data.   - Data retrieval must be possible from a large number of parallel threads without threads blocking each other.   You need to recommend an approach for storing data.  What should you recommend？（）

• A、 Use Windows Azure Queues.
• B、 Use Windows Live Mesh 2011.
• C、 Use a single SQL Azure database.
• D、 Use Windows Azure Table storage