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