I'd guess some sort of Sci-Fi genre. Of course action and adventure usually go along with Sci-Fi to that extent, but really just the one main genre. Of course there are outliers, some fantasy (not LotR type fantasy) may have robotic characters.
A, C, and D all have commas where they are NOT necessary, so they are sentences that are considered NOT to have proper punctuation. Thus, the answer is B.
