If x is a positive integer, is x! + (x + 1) a prime number?

(1) x < 10

(2) x is even


The only way I was able to solve this was to do every factorial up to 9 and see if any of them were prime/not prime after adding x+1. Obviously, this is inefficient and certainly not how it is to be solved... any help?

Answer is E, neither answer is sufficient