A disadvantage or limitation of the experimental research method is A. the researcher has little control over the situation. B. it does not allow for conclusions concerning cause and effect relationships. C. it does not allow for a description of behavior. D. it frequently takes place under artificial circumstances.

D.

Explanation:

Experimental research is research that is always done in an controlled environment. The people setting this experiment up want that controlled environment because they're not really experimenting with something. The point of it is to prove a point, or confirm information that is already known, like something you would do in a science lab at school. You make a hypothesis, the researcher manipulates the variables, measures the outcome, and compares the results.

These are often artificial, and subject to error by the participants, so the results are often very subjective and unrealistic.

well considering i can't see the graph, it's probably prices