I chose B, but when I saw the correct answer was A I first went back to my train of thought to figure out what I did wrong. I realized that I too wanted to answer my questions based on the math, which was wrong. I did not negate the conclusion after reading " they are wrong". The premise made sense to back up the conclusion, which was the extinction was ongoing throughout the years.

I wonder if there is a difference in finding the answer when the question says "most seriously" vs. "most". When one looks for the answer if it reads most seriously are we to look for the answer that hurts the argument the most?