Use the following SELECT statement to answer. 1 SELECT customer#, COUNT(*) 2 FROM customers JOIN orders USING

Question:

Use the following SELECT statement to answer.

1 SELECT customer#, COUNT(*)
2 FROM customers JOIN orders USING (customer#)
3 WHERE orderdate > '02-APR-09'
4 GROUP BY customer#
5 HAVING COUNT(*) > 2;

The COUNT(*) function in the SELECT clause is used to return:
a. the number of records in the specified tables
b. the number of orders placed by each customer
c. the number of NULL values in the specified tables
d. the number of customers who have placed an order