The answer should be D because it is stating something happy/nice at the beginning, but then it goes into the downside of the experiments. Which means you need a negative transition word
Answer:
can't help if you don't have pictures or better explanation
B. He's good natured and possibly making a joke
Sinners have little left to mess up after they sin of course. It is almost like treading on “thin ice”. Like also meaning whatever they do next is the last straw.