Hello All

I am reviewing my notes and came across this one.

If the product of the three digits of a three digit positive integer N is 8. What is N?

1) The hundreds digit of N is even

2,2,2
8,1,1
Not sufficient

2) The tens digit of N and the units digit of N are the same.

8,1,1
2,2,2 (can this be considered considering we are specifically told that only the units and the tens digit match. That should mean hundreds must not match).

As per O.A 2,2,2 is a fair game.

What is the GMAT preferred rule on debatable questions like this one? Please help.