Step 1: Concept Overview:
The question requires identifying anthropologists belonging to the same school of thought, specifically within 20th-century American anthropology's theoretical movements.
Step 2: Detailed Analysis:
- A. James Frazer: A Scottish anthropologist prominent in 19th-century classical evolutionism. His work used comparative methods and "armchair anthropology," which later faced criticism.
- B. Ruth Benedict, C. Margaret Mead, and D. A. Kardiner: Key figures in the Culture and Personality school, prominent in American anthropology during the 1930s-1940s. Influenced by Freudian psychology, this school examined the relationship between cultural patterns and individual personality.
- Ruth Benedict ("Patterns of Culture") and Margaret Mead ("Coming of Age in Samoa"), students of Franz Boas, explored culture's impact on personality.
- Abram Kardiner, a psychoanalyst, collaborated with anthropologists like Ralph Linton to develop the "basic personality structure" concept, central to this school.
Step 3: Conclusion:
Ruth Benedict, Margaret Mead, and A. Kardiner are linked to the Culture and Personality school. James Frazer aligns with the earlier classical evolutionism. Therefore, B, C, and D constitute the correct group.