I would probably use a checklist (B), because the order in which you complete items on a checklist does not really matter, just don't forget to check them after completing them. A diagram might also be okay, but it depends on what it shows.
A. Wicked.
Because obscene means offensive or disgusting, one could infer that because it means those things it would also be a word to describe evil things. Thus wicked is the closest answer to the actual word.
Look up what that is and give an opinion of what you think...................
