Can you provide the allotted answers you're supposed to pick from?
To fix the sentence, change "," after 2004 to ";" and remove the "and" before scientists. It makes the sentence sound better.
I hope that helps!
America avoided the potential dangers that Bradbury seems to fear by staying true to the rights in the Constitution. America doesn't fear people who have knowledge and can question ideology, if anything they encourage it. And that is how America avoided some of the potential dangers in Fahrenhiet 451.