Can Correlational Studies or Experiments Ever Be Conducted Outside of the Laboratory

Can correlational studies or experiments ever be conducted outside of the laboratory?

A) No, both of these types of studies are always performed in the lab.
B) Correlational studies can be conducted inside the laboratory or out in the "real world," but experiments are always conducted in the lab.
C) Correlational studies are always conducted in the "real world" (not the lab) and experiments are always conducted in the lab (not the "real world") .
D) Both correlational studies and experiments can be performed in the lab or in the "real world;" when experiments are performed in the "real world" they are called field experiments.