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	<b>QUESTION 087	</b>
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<p>You define a multiple-row subquery in the WHERE clause of an SQL query with a comparison operator "=". 
What happens when the main query is executed? </p><table border="1" bordercolor="gray" width="665">
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			<p><b><input type="radio" name="AN" value="A">  A.</b></p>
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			<p> The main query executes with the first value returned by the subquery. 
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			<p><b><input type="radio" name="AN" value="B">  B.</b></p>
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			<p>   The main query executes with the last value returned by the subquery. 
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			<p><b><input type="radio" name="AN" value="C">  C.</b></p>
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			<p>   The main query executes with all the values returned by the subquery. 
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			<p><b><input type="radio" name="AN" value="D">  D.</b></p>
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			<p>   The main query fails because the multiple-row subquery cannot be used with the comparison operator. 
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			<p><b><input type="radio" name="AN" value="E">  E.</b></p>
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			<p>   You cannot define a multiple-row subquery in the WHERE clause of a SQL query.</b></p>
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