Solution

option 4 is the correct answer.

• The expression !(num - 65) evaluates to true if num is not equal to 65, and false if num is equal to 65.
• However, this expression is not equivalent to num! = 65, since the factorial of other numbers besides 65 can also produce the same result as 65.
• Options 1 and 3 are also not valid replacements for num! = 65, since they do not check if the factorial of num is equal to 65.
• Option 2 is the only option that is equivalent to num! != 65, but it is not the correct answer since the question asks for a replacement that is NOT equivalent to num! = 65.