Pre-history refers to the period before humans begin to document information.
It is important that human study pre-history because it can give him insight into the origin of life and how life was developed on earth. Pre-history makes one to understand how the earth develop to the stage it is today and it gives one an idea of what could possibly happen in the time to come
C, because humanitarian aid, military assistance, and development aid are all included
Answer:This is an example of selective observation
Explanation:
What is meant by selective observation?
Selective observation is an observation where we tend to focus our attention to a phenomenon that support our own concluded ideas.
In selective observation when we collect data it is based on what we have already concluded like a researcher above has concluded based on what he believes about girls that they obsess more over their dressing code but now he neglects that even boys do obsess about how they present themselves to others which includes how they dress up hence his observation is now selective ; selecting only girls to make his observations.
