Marquez is writing a research paper comparing temperatures in North and South America. Which type of visual aid would best suit his purpose? a road map showing points of interest based on the weather
a topographical map showing physical features of Europe
a color-coded boundary map showing different countries
a color-coded climate map showing different zones

The answer is D.

Explanation:

The different color ranges shows the different levels of heat.

from the word list given, the most suitable words that relate to the reason information were written would be:  

objectivity: lack of bias, judgment, or prejudice

accuracy: free of mistakes, to be correct

authority: the ability to tell people what to do or believe in

content: to be satisfied  

it can be said that the author made the article to present objectivity, to provide accurate information, to be the authority in the subject that he or she writes, and to be satisfied of the information quality given out.