How Does a Quasi-Experiment Differ from an Ex Post Facto

Multiple Choice

How does a quasi-experiment differ from an ex post facto design?

A) In a quasi-experiment, there is more control over the IV than in an ex post facto study.
B) A quasi-experiment has a measured dependent variable and an ex post facto study does not.
C) A quasi-experiment has random selection and an ex post facto study does not.
D) All of the above are differences between a quasi-experiment and an ex post facto design.