Answer:
The aim of the study of macroeconomics is to examine the interactions between individual producers and consumers. the behavior of factors affecting the economy. the relationship between supply and demand.
The main point of the excerpt is that readers should be aware of the damage that the war has done to a generation of men who were impacted by it, and read the book with this idea in mind.
The epigraph wants to make sure that readers who approach this book do it with the same purpose as the one with which the author wrote it. He does not want the readers to think of this book as an accusation, a confession or an adventure.
This pictures shows all the events
Answer: D. Romney won the most delegates in the race for 2012 nomination.
Explanation: Given the information in this graph, Romney has roughly 1500 delegates VS all the other candidates who don't even have 400 delegates. The graph does not give any information about caucuses or primaries, so A couldn't be the right answer. Paul, Gingrich, and Santorum combined is around 800, where Romney has 1500, therefore B is incorrect. And again with C, the graph does not provide any information about about primaries so therefore irrelevant, leaving D as the final answer.