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n(n-1)x... x 3 x 2 x 1 = ?

n(n-1)x... x 3 x 2 x 1 = ?
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  • A N!
  • B NCr
  • C NPr
  • D N
Correct Answer: Option A
Explanation:
The expression \( n(n-1) \times ... \times 3 \times 2 \times 1 \) is the definition of the factorial of \( n \), which is denoted as \( n! \).

So, the correct answer is:

A. \( n! \).

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