Kumar Thinks That a Child's Background and Environment Influence Educational

Kumar thinks that a child's background and environment influence educational attainment more than the physical resources a school has at its disposal. His view most closely resembles the conclusions of which of the following studies?

A) sociological studies of tracking and "within school effects"
B) Jonathan Kozol's Savage Inequalities
C) James Coleman's studies on "between school effects"
D) Randall Collins's studies of credentialism