Ascientist systematically studies and analyzes facts draws conclusions based on public opinion draws conclusions based on logical thinking

studies and analyzes facts
-yes, this is something that a scientist does! For example, those facts can be based on the data on climate change

 draws conclusions based on public opinion
-this is false! (unless the public opinion is the subject of the study)

 draws conclusions based on logical thinking
-logical thinking is important in science, but it's not the core of it, data collection is more important -so if you can only choose one option, answer a) is the best one.