Which of the following statements describes the use of a GROUP BY clause?

A.
A GROUP BY clause automatically sorts the grouped result in ascending order, if DESC
keyword is not defined.

B.
A GROUP BY clause returns a single row of information for each group of rows, in addition to
all the rows.

C.
A GROUP BY clause returns a single row of information for each group of rows.

D.
A GROUP BY clause automatically sorts the grouped result in descending order.

Explanation: