Which two statements about subqueries are true? （）
- A A single row subquery can retrieve data from only one table.
- B A SQL query statement cannot display data from table B that is referred to in its subquery, unless table B is included in the main query's FROM clause.
- C A SQL query statement can display data from table B that is referred to in its subquery, without including table B in its own FROM clause.
- D A single row subquery can retrieve data from more than one table.
- E A single row subquery cannot be used in a condition where the LIKE operator is used for comparison.
- F A multiple-row subquery cannot be used in a condition where the LIKE operator is used for comparison.