What does the following code do? ``python def a(b, c, d): pass ``

Question

def a(b, c, d):
 pass

Options

• ADefines a list and initializes it.
• BDefines a function, which passes its parameters through.
• CNone of the above.
• DDefines a function, which does nothing.
• EDefines an empty class.

• A
  4% (3)
• B
  7% (5)
• C
  16% (11)
• D
  70% (47)
• E
  1% (1)

Explanation

Option D is correct because def a(b, c, d): defines a function named a with three parameters, and pass is a Python no-op statement that makes the function body syntactically valid while doing absolutely nothing when called. Option A is wrong because no list is created - there's no [], list(), or assignment anywhere. Option B is wrong because pass does not forward or process parameters in any way; the function simply returns None immediately. Option E is wrong because classes use the class keyword, not def. Option C is eliminated because D is clearly correct.

Memory tip: Think of pass as a placeholder tombstone - it marks where code could go, but the grave is empty. Any function whose body is only pass is a defined-but-dead function.

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