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View the Exhibit and examine the description of the PRODUCT_INFORMATION table.

Which SQL statement would retrieve from the table the number of products having LIST_PRICE as NULL?

A.
SELECT COUNT(list_price)
FROM product_information
WHERE list_price IS NULL;

B.
SELECT COUNT(list_price)
FROM product_information
WHERE list_price = NULL;

C.
SELECT COUNT(NVL(list_price, 0))
FROM product_information
WHERE list_price IS NULL;

D.
SELECT COUNT(DISTINCT list_price)
FROM product_information
WHERE list_price IS NULL;

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