Your company Web site includes a page that customers use to send feedback about the company and its products. You use a SQL Server 2005 database to store the comments in the Comments column of a table named Feedback. You need to implement full-text searching so that you can run reports on the comments. Which two actions should you perform? （）

• A、 Create a nonclustered index on the Comments column. 
• B、 Execute the USE Master Transact-SQL statement. 
• C、 Create a full-text catalog. 
• D、 Create a full-text index on the Comments column.