Which of the following must be true?
1) Every prime number greater than 5 can be written as either as 5n+1 or 5n-1
2) Every prime number greater than 5 can be written as 4n+1 or 4n-1
3) Every number greater than 5 of the form 5n+1 or 5n-1 is a prime number.	Choose the correct choice from the following choices:	A) 1,2,3	B) 1,2	C) 2,3	D) only 1	E) only 2
Every prime number greater than 3 can be written in the form of 5n+1 or 5n-1 where n is an integer. So 1 can be possible.   3. This is not possible as 2 and 3 are being prime , we can't write then in the form of 5n+1 or 5n-1.   1,2
<result>B</result>
Which of the following must be true?
1) Every prime number greater than 5 can be written as either as 5n+1 or 5n-1
2) Every prime number greater than 5 can be written as 4n+1 or 4n-1
3) Every number greater than 5 of the form 5n+1 or 5n-1 is a prime number.