下面哪条 SQL 语句将为计算列 SAL*12 生成别名 Annual Salary ( )
A.
SELECT ename,sal*12 ‘Annual Salary’ FROM emp;
B.
SELECT ename,sal*12 “Annual Salary” FROM emp;
C.
SELECT ename,sal*12 AS Annual Salary FROM emp;
D.
SELECT ename,sal*12 AS INITCAP(“Annual Salary”) FROM emp;