View the Exhibit and examine the structure of the ORDERS table. Which task would require subqueries? ()
A displaying the total order value for sales representatives 161 and 163
B displaying the order total for sales representative 161 in the year 1999
C displaying the number of orders that have order mode online and order date in 1999
D displaying the number of orders whose order total is more than the average order total for all online orders
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