Select the expression that is equivalent to the following statement:

Among any two consecutive positive integers, there is at least one integer that is not prime.

If x is a positive integer, then x is not prime and x+1 is not prime.

If x and y are positive integers, then x is not prime or y is not prime.

If x and y are positive integers, then x is not prime and y is not prime.

If x is a positive integer, then x is not prime or x+1 is not prime.