Why Was the Supreme Court Case New York Times V

Why was the Supreme Court case New York Times v.Sullivan significant?

A) state laws that make flag burning a crime are too lenient
B) The Court ruled that newspapers could be guilty of libel if they published any information that was ultimately proven to be inaccurate.
C) The Court ruled that the government could prevent the publication of newspapers and magazines only under the most extraordinary circumstances.
D) The Court ruled that pornography is always illegal.
E) The Court ruled that "shield laws" were unconstitutional.