Simple. 2 is the more likely. If not then you are once again faced with the question that no religious person ever likes to answer. If all things need a first cause and creator then who or what created god?
I answered it, you just didn't like the answer.
Let's try a physical explanation because that's what you want to explain something non-physical.
How about...... God came into being with a Big Bang caused by a singularity caused by.......oh!
Not a good explanation for anything coming into being, is it?