Which of the Following Statements A), B) or C) Is

Which of the following statements a) , b) or c) is false?

A) The xe "factorial"factorial of a positive integer n is written n! and pronounced "n factorial."
B) n! is the product n · (n - 1) · (n - 2) · … · 1
With 1! equal to 1 and 0! defined to be 1.
C) 4! is the product 4 · 3 · 2 · 1, which is equal to 24.
D) All of the above statements are true.