Then I got hit by the bus. I wish I had listened to my parents and looked both ways.
Okay, so I am confused about what you're asking here.
I would go with the last one, the way its described seems scary and uninviting. and for instance maybe if you were somewhere that you enjoyed or wanted to be the bug would bother you, but in this case they don't seem like an main concern.
The Answer is D. Most sadly
The comparative of the adverb sadly is more sadly so the superlative is most sadly.
Hope this helps :-) <3
