Which of the Following Statements Is True About Correlational Research

Which of the following statements is true about correlational research?

A) It allows researchers to predict changes in a variable that is related to another variable.
B) It enables researchers to establish a cause and effect relationship between two variables.
C) It is mandatory for researchers to debrief participants when conducting a correlational research.
D) It enables researchers to determine why a particular change in one variable causes a change in another variable.