A Causal Study Is One That _____

A causal study is one that _____.

A) attempts to capture a population's characteristics by making inferences from a sample's characteristics and testing resulting hypotheses
B) emphasizes a full contextual analysis of a few events or conditions and their interrelations
C) discovers answers to the questions who, what, when, where, or how much
D) attempts to reveal why or how one variable produces changes in another
E) provides repeated measures over an extended period of time