A subquery is called a single-row subquery when

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Options

• Athe inner query returns a single value to the main query
• Bthe inner query uses an aggregate function and returns one or more values
• Cthere is only one inner query in the main query and the inner query returns one or more values
• Dthe inner query returns one or more values and the main query returns a single value as output

• A
  84% (36)
• B
  9% (4)
• C
  2% (1)
• D
  5% (2)

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