根据SQL标准,下面哪条语句与select min(age) from student等效?()
A.
select age from student where age >= min(age)
B.
select distinct age from student where age >= all min(age)
C.
select distinct a.age from student a where a.age <= any (select distinctb.age from student b)
D.
select distinct a.age from student a where a.age <= all (select distinct b.age from student b)