Which two statements are true regardin

Which two statements are true regarding the ORDER BY clause?（）

• A The sort is in ascending by order by default.
• B The sort is in descending order by default.
• C The ORDER BY clause must precede the WHERE clause.
• D The ORDER BY clause is executed on the client side.
• E The ORDER BY clause comes last in the SELECT statement.
• F The ORDER BY clause is executed first in the query execution.