In a Complete Participant Observation Study, the Observer

In a complete participant observation study, the observer

A) participates fully in the research setting and fully informs the other people in the setting of her or his role as researcher.
B) enters into the research setting but interacts with the other people in the setting no more than is necessary to collect data.
C) becomes a full member of the research setting without the other people in the setting being aware of the observer's role as researcher.
D) avoids taking part in the research setting and merely watches what happens and records the observations.