You are designing a plan to migrate an application to Windows Azure.  The application generates log files in a proprietary format.  You need to recommend an approach for retaining the existing log file format.  What should you recommend？（）

• A、 Configure Windows Azure Diagnostics to transfer event logs.
• B、 Configure Windows Azure Diagnostics to transfer directories.
• C、 Configure Windows AzureDiagnostics to transfer performance counters.
• D、 Configure Windows Azure Diagnostics to transfer basic Windows Azure logs.