The correct option is C Not defined
Need to Find:––––––––––––––––––
The value of 0×34!
The given expression involves multiplication of 0 and fractorial of a fraction 34.
And as we know, factorial of a fractional number is not defined, the product 0×34! is not defined.
(∵ The product of a not defined quantity by anything is not defined)
Therefore, option (c.) is the correct choice.