You administer a SQL&e

You administer a SQL Server 2008 instance. You plan to deploy a third-party database application to the instance. The application uses stored procedures that are developed by using SQL CLR integration. The application must be configured to enable the EXTERNAL_ACCESS code access security setting. You need to ensure that the application is deployed to the instance without loss of functionality. What should you do first?（）

• AReplace read write non-static fields in the code with static fields.
• BReplace read-only static fields in the code with read write static fields. 
• CUse the peverify.exe PEVerify tool to verify whether the code meets the type-safety requirements.
• DUse the regasm.exe assembly registration tool to register the assembly on the server before deployment.