关于group by 以下语句正确的是( )

关于group by 以下语句正确的是( )

A.SELECT store_name FROM Store_Information GROUP BY store_name

B. SELECT SUM(sales) FROM Store_Information GROUP BY sales

C.SELECT store_name, price SUM(sales) FROM Store_Information GROUP BY store_name，price

D.SELECT store_name, SUM(sales) FROM Store_Information GROUP BY store_name