Every time she goes out, Danah has to rush home after being overwhelmed by dizzy spells, an irregular heartbeat, and feeling as though she can't breathe. Finally, she decides to go to the emergency room, but a thorough exam rules out any medical problem. Nevertheless, Danah has become increasingly fearful about having more episodes and has restricted her activities to only the most essential outings. Danah seems to be displaying symptoms of

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.