The death of the ball turret gunner?

I would choose "a," I had to review the same poem in college. In the womb, and ball turret; it's the same you are pretty much helpless over life or death. Interesting fact I didn't know about the ball turrets on the plane at the time. To get in or out of the ball turret, it had to be rotated into a specific direction. If the mechanism got jammed in the wrong position, you were trapped. Bad news if you had to bail out, or if there was a fire.