Yes, it's #2! Being an amateur, I ripped off half of one of my nails when trying to loosen it, before my friend came over. My gloves were right next to me

I replaced the bolt.

The reason I loosened it myself was I used the drain plug on the bottom to get the old ATF out for several days before he came over. I saw in the instructions that it's important to make sure you can open the fill hole before draining.