Which of these is a guarantee in the First Amendment? A. States have the power to regulate public education.
B. People can choose whether and how to participate in religious services.
C. Persons accused of a crime are presumed innocent until proven guilty.
D. Citizens have the right to be judged by a jury of their peers.

Before they can be published, scientific papers must be peer-reviewed. this means that: a) some other scientific experts read the papers and guarantee that they are true. b) some other scientific experts read the papers and provide quality control by eliminating many mistakes. c) an editor reads the papers, to make sure that all the semicolons are in the correct places. d) everyone in the world is given the opportunity to comment on the papers through a specially maintainedblog. e) government bureaucrats read the papers, to be sure that the papers do not insult the political positions ofthe current officeholders.