Reliability Refers to Consistency or "Repeatability" of Measures in Research

Reliability refers to consistency or "repeatability" of measures in research.Participant observation has

A) high reliability because ethnographers often rely on grounded theory.
B) low reliability because it relies heavily on researchers' perceptions and interpretations.
C) reliability that varies greatly depending on the ethnographer's role in the setting.
D) such low reliability that it is better classified as an art than a science.