A subquery is called a single-row subquery when _______.

Question

Options

• AThere is only one subquery in the outer query and the inner query returns one or more values
• BThe inner query returns a single value to the outer query.
• CThe inner query uses an aggregating function and returns one or more values.
• DThe inner query returns one or more values and the outer query returns a single value.

• A
  15% (7)
• B
  73% (35)
• C
  4% (2)
• D
  8% (4)

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