D, because the document is talking about protecting citizens and helping them
Observing behavior in real-world settings and making no effort to manipulate or control the situation is known as naturalistic observation. It is a research method that is most used by psychologists which they observe their test subjects in thir natural habitat without changing any parameter.
Answer:
to confirm preexisting beliefs
Explanation:
Confirmation bias
This is simply one's ability to seek, interpret, favor and recall information that is in line or conforms to an individual's pre-existing beliefs or expectations.
People here tends to likely view things that could conforms to something rather than disconfirm it.
Two reasons for the existence of onfirmation bias:
1. Directional motives: humans usually finds informations that is in line with our beliefs and expectations
2. Cognitive heuristics: It deals with things that views our beliefs and expectations usually we imagine first.
The most suitable word for Barcelona would be "enthusiastic". The word enthusiastic comes from the word itself which is "enthusiasm" that means a feeling of energetic interest in a particular subject or activity and a desire to be involved with it. For Barcelona, when you imagine the place, you ought to be interested in what's with the place and what does the place offer.