You are researching a public essay on growing internet censorship. which of these sources is the most relevant and credible?

a. a list of signatures from people who are against restrictions proposed in new internet laws

b. an anonymous article in a local county newspaper supporting harsher internet censorship laws

c. a recent survey by a news agency showing that most parents across the country favor internet censorship

an article on an internet blog that describes how d. the act of internet censorship encroaches on the first amendment