D DDDDDDDDDDDDDDDDDDDDDD (sorry I have to put at least 20 characters)
My answer is b. its more apropriate and makes more sence. hope this helps.
I would say that it depends on the audience. Personally, a debate regarding ethics and moral dilemma is interesting. Read The Fat Man and the Impending Doom. It's just one paragraph so it's not going to bore audience.
https://thedailydilemma.wordpress.com/2007/06/18/fat-man/
I believe that this type is a lecture-forum discussion.
Answer:
All of the above it’s an opinion
Explanation:
B, I'm pretty sure. The other ones do not contribute to the correct dialog.