I believe that the answer is experimentation.
Answer:
A. administering interviews according to an interview schedule over the phone
Explanation:
Participant observation is an Anthropology and sociology analysis methodology distinguished by the researchers' attempts to achieve a new understanding of the internal nature of society through a foreign culture or an alien community and their social acceptance.Participant observation necessitates the investigator to become an objective participant in the manner that they are interacting with and gaining additional access to the group via the personal participation with research subjects.
The Republic of Texas hoped that the United States would annex Texas to: assist with its debts, assist its, originally slow economy, assist in its expansion goals, and continue to protect it from Mexico who was wanting to retake the defenseless territory.
Depressive disorders or mood disorders
The answer is: A. It is aligned with values, challenging objectivity.
Action research is a form of research that conducted by offering some sort of progressive solutions to the communities that are experiencing some sort of problems. (such as hate groups, vandalism, etc)
While the intention might be good, action research is undeniable based on value, since the solutions that offered by the researchers would only based on what the researchers think as morally right. This will create a bias in the way their view the result of their research.