Final answer:
The product notation that represents n! is n!.
Step-by-step explanation:
The product notation that represents n! is n!.
To explain this, the exclamation mark in mathematics represents the factorial of a number. The factorial of a positive integer n, denoted as n!, is the product of all positive integers from 1 to n. For example, if n=5, then 5! = 5 * 4 * 3 * 2 * 1 = 120. So, in the given options, the correct product notation for n! is n!.