Þ C. FOR A GROUP BY CLAUSE TO BE USED, A GROUP FUNCTION MUST APPEAR...

8. þ C. For a GROUP BY clause to be used, a group function must appear in the SELECT list.ý A, B, and D. These are incorrect, since the statement is syntactically inaccurate and is disallowed by Oracle. Do not mistake the column named MAX_SALARY for the MAX(SALARY) function.