The opinions that are being collected and are being published in volumes of books is known as reporters, which is letter A. It is because this is what the court judges made use of in writing their opinions in regards of their decision in a particular appeal or trial.
The correct answer would be option D. When you are trying to decide between renting two apartments and you really prefer one over the other, but can't really say why, this is your emotional brain at work. If you can enumerate the reasons of which you should choose, then that would be the rational brain.
