Select "No change is needed” if the underlined text makes the statement correct.

This question requires that you evaluate the underlined text to determine if it is correct.
To improve performance, a SQL SELECT statement should use indexes.
Select the correct answer if the underlined text does not make the statement correct. Select
“No change is needed” if the underlined text makes the statement correct.

A.
No change is needed

B.
joins

C.
grouping

D.
ordering