1. briefly, what did cavour get from napoleon here at plombieres?

Count Cavour (10 August 1810 – 6 June 1861) was a chief minister of the Kingdom of Piedmont-Sardinia and an important figure in the process of Italian unification in the 19th century.

On 21 July 1858, he has entered into a secret agreement with, Napoleon III, the French Emperor. Though this agreement was only verbal and left no concrete evidence, it is sometimes referred to as the Treaty of Plombières.  

As a result of this agreement, France and Piedmont became allies in the confrontation with Austria. Cavour received support from France with the goal to free Italian peninsula from Austrian influence and thus move further to Italian unification.

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.

you didnt give a question