You work for a company that provides marketing data to other companies.
You have the following Transact-SQL statement:

DECLARE @CustomerDemographics XML SET @CustomerDemographics=N’
<CustomerDemographics>
<Customer CustomerID="1" Age="21" Education="High School">
<IsCoffeeDrinker>0</IsCoffeeDrinker>
</Customer>
<Customer CustomerID="2" Age="27" Education="College">
<IsCoffeeDrinker>1</IsCoffeeDrinker>
<IsFriendly>1</IsFriendly>
</Customer>
<Customer CustomerID="3" Age="35" Education="Unknown">
<IsCoffeeDrinker>1</IsCoffeeDrinker>
<IsFriendly>1</IsFriendly>
</Customer>
</CustomerDemographics>’

DECLARE @OutputAgeOfCoffeeDrinkers XML
SET @OutputAgeOfCoffeeDrinkers = @CustomerDemographics.query(‘
for $output in /child::CustomerDemographics/child::Customer[( child::IsCoffeeDrinker[1] cast as xs:boolean )]
return <CoffeeDrinkingCustomer> { $output/attribute::Age } </CoffeeDrinkingCustomer>’)

SELECT @OutputAgeOfCoffeeDrinkers

You need to determine the result of the query. What result should you expect?

A.
<CoffeeDrinkingCustomer Age="27" />
<CoffeeDrinkingCustomer Age="35" />

B.
<CoffeeDrinkingCustomer Age="21" />

C.
<CustomerDemographics>
<Customer>
<CoffeeDrinkingCustomer Age="21" />
</Customer>
</CustomerDemographics>

D.
<CustomerDemographics>
<Customer>
<CoffeeDrinkingCustomer Age="27" />
</Customer>
<Customer>
<CoffeeDrinkingCustomer Age="35" />
</Customer>
</CustomerDemographics>