This question is missing the options. I've found the complete question online. It is the following:
As part of a study in auditory perception, a group of students was made to listen to a low-volume music track. When they first put on their headphones, they almost couldn’t hear anything. But as they became more attentive, the sound gradually became clearer. This is an example of _________.
a. retinal disparity
b. pitch increase
c. sensitization
d. subliminal stimulation
Answer:
This is an example of C. sensitization.
Explanation:
According to the given scenario, the sound was not altered. Its volume, its pitch - everything remained the same. There was, however, an alteration in people's perception of the sound, and that is due to a process known as sensitization. Sensitization happens when a certain stimulus becomes more effective because of repetition or continuation. That is, because people kept on listening to the sound, even though it was low, they were able to hear it after a while.
 
        
             
        
        
        
Answer: D) a journalist
Explanation: John O'Sullivan was a member of a journalist team that founded the National Post. He has been editor of lots of things and has published articles in many newspapers and magazines such as The New York Times, The Washington Post, and Commentary.
 
        
             
        
        
        
Answer:
The correct answer for: Risk of harm in social and behavioral sciences generally fall in three categories, which are: Is: 1.- Invasion of privacy. 2.- Breach of confidentiality. 3.- Study procedure.
Explanation:
First of all risk of harm in social and behavioral sciences is a very general phenomenon that is part of the interdisciplinary objects o studies because it has many causes and many perspectives to be analyzed. It is such a complex phenomenon that can be analyzed by many postures and it has so many outcomes also that there has to be an event with the isolation of events or parts to be discussed, analyzed, and solved. Thus, invasion o privacy it's a very basic form in which this phenomenon can be caused or developed. Breach confidentiality also has a very close relation with le last mentioned because the exposure of information after it's gathering will lead to scenarios in which there could be a risk the subjects of study or the researchers can make the study all into this category. Now the last want is a bit complicated because even though it can define the procedure of study it also can be the same effect by revealing this information to the public. 
 
        
             
        
        
        
Answer:
Since Oscar contributed to the damages by not wearing his seatbelt, he cannot recover any of the damages. 
I think the answer is A.
 
        
             
        
        
        
Answer:
Explanation:
Satyagraha - a policy of passive political resistance, especially that advocated by Mahatma Gandhi against British rule in India.