Ossie is watching groups of people to confirm his theory about societal views on what is considered appropriate behavior among family members versus social acquaintances. which method is he using?
a. participant observation
b. consensus building
c. expert intervention
d. professional perspective

A. Participant observation

Explanation:

Participant observation  is one kind of information accumulation technique normally utilized in subjective research and ethnography. It is a broadly utilized system in numerous controls, especially social humanities, European ethnology, human science, correspondence thinks about, human geology, and social brain science. Its point is to increase close and personal recognition with a given gathering of people, and their practices through a concentrated contribution with individuals in their social condition, more often than not over an all-inclusive timeframe.

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explanation: