A SELECT statement can be used to perform these three functions: 1.Choose rows from a table. 2.Choose columns from a table. 3.Bring together data that is stored in different tables by creating a link between them. Which set of keywords describes these capabilities?（）

• A、difference, projection, join
• B、selection, projection, join
• C、selection, intersection, join
• D、intersection, projection, join
• E、difference, projection, product