现有雇员表(雇员号,姓名,性别,出生日期),查询所有目前年龄小于30岁的雇员(按照出生年份判断,不需考虑生日),结果显示姓名和年龄。正确的命令组是____。['A:CREATEVIEWV_AgeASSELECT姓名,YE
AR(GETDATE())-YEAR(出生日期)FROM雇员表GOSELECT姓名,年龄FROMV_AgeWHERE年龄<30', 'B:CREATEVIEWV_AgeASSELECT姓名,YEAR(出生日期)FROM雇员表GOSELECT姓名,年龄FROMV_AgeWHERE年龄<30', 'C:CREATEVIEWV_Age(姓名,年龄)ASSELECT姓名,YEAR(出生日期)FROM雇员表GOSELECT姓名,年龄FROM雇员表WHERE年龄<30', 'D:CREATEVIEWV_Age(姓名,年龄)ASSELECT姓名,YEAR(GETDATE())-YEAR(出生日期)FROM雇员表GOSELECT姓名,年龄FROMV_AgeWHERE年龄<30']