Those that choose #2 are, in essence, stating their belief that masks are "useless," when there is scientific evidence to suggest there is at least a nominal benefit.
I imagine some people chose the second option because the first and third option was further away from what they believe...
For example, if this had been an option...
Masks might be beneficial, but they're not solving the problem. Let's just get this damn thing done and over with so (almost) everyone can move on with life.
I would have chosen it.