If A and B are two prime numbers bigger than 2, which of the following can't be true?
(1) A + B is an even number.
(2) A - B is also a Even number.
(3) A^B is also a prime number.
Choices.
A) 1 only.	B) 2 only.	C) 3 only.	D) 2 and 3 only.	E) 1, 2 and 3.
Answer is D : 2 and 3 only   (1) A + B is an even number. : All primes beyond 2 are odd, so odd+odd = even, so true   (2) A - B is also a Even number. : True   (3) A^B is also a prime number. : Beats the property of primes, so false   Ans : 3 only.
<result>C</result>
If A and B are two prime numbers bigger than 2, which of the following can't be true?
(1) A + B is an even number.
(2) A - B is also a Even number.
(3) A^B is also a prime number.