Examine the description of the STUDENTS table:<br /> <img src="https://nimg.ppkao.com/2018-08/yiyu/2018080115032850512.jpg?sign=2891f6ce4ed7be30a9405e6bc96e54f0&t=62d1d273" /><br /> Which two aggregate functions are valid on the START_DATE column?()
A、SUM(start_date)
B、AVG(start_date)
C、COUNT(start_date)
D、AVG(start_date, end_date)
E、MIN(start_date)
F、MAXIMUM(start_date)