DrLucero Moves into an Apartment in a Low-Income Neighborhood in Washington,D.C.He

Dr.Lucero moves into an apartment in a low-income neighborhood in Washington,D.C.He is interested in studying coping strategies of the working poor.He remains immersed in the neighborhood for a long period of time,watching and recording the activities of the residents without engaging in them.This situation is an example of

A) complete participant.
B) participant as observer.
C) observer as participant.
D) complete observer.