Answer:
Sujay is seeking informed consent. 
Explanation:
The informed consent is a process by which the researcher, health provider, expert <em>informs the patient about the process</em> in which he/she will take part. 
It tends to be in written form and it is general information regarding the<em> risks and benefits</em> of the procedure, product. The patient has to agree with it voluntarily. 
In this case, Sujay is seeking informed consent since he explains the objective of the study, explaining what the subjects can and can't do as well as hand them the opportunity to choose if they want to participate or not. 
 
        
             
        
        
        
Territorial expansion remained popular with the U.S. public, as did the idea of spreading republican government. Many pro-slavery Southerners sought to expand southwards, allowing for more territory where slavery could continue to grow and expand.
Human Sacrifices is the act of killing one or more humans, usually as an offering to a deity, as part of a ritual. Human sacrifice has been practiced in various cultures throughout history.
I mean.
They're both in history and ''practiced''.
Though a connection, no,  Territorial expansion went along with slavery. The act of killing another human being is not very humane nor a connection. Slavery deals with principles of property law are applied to them, allowing individuals to own, buy and sell other individuals, as a de jure form of property. A slave is unable to withdraw unilaterally from such an arrangement and works without remuneration. Human Sacrifices deal with people who have really no choice and are dead either way, victims were typically ritually killed in a manner that was supposed to please or appease gods, spirits or the deceased. Slavery doesn't deal with death. So, no.
 
        
             
        
        
        
1. Its a painting. Produced in 1823. Audience I'm guessing workers 
2. Well it looks like they're building a road so id say we were affected greatly because we use roads as major source of transportation 
Hope this helps 
        
             
        
        
        
This would be mostly Great Britain and France: you can see that many countries today still speak English and French in Africa. 
Portugal also had some land under its control: Angola and Mozambique. 
Now, I am unsure about the forth one, as there is a number of countries that had a colony, but were not as present as the ones I mentioned above. These are Belgium, Italy, Germany and Spain.