You are designing a plan to migrate Microsoft SQL Server 2008 databases to SQL Azure. You do not plan to migrate the SQL Server databases to SQL Server 2008 R2. You need to recommend an approach for performing bulk data transfers from the SQL Server databases to SQL Azure. What should you recommend？（）

A. Use the bcp utility.
B. Use the dta utility.
C. Use the SQL Server Import and Export Wizard.
D. Attach each SQL Server database to SQL Azure.