A company shows a new commercial in front of a randomly selected group of people and notes their reactions. Decide whether this calls for a survey, experiment, or observational study. Explain.
A. Experiment, The members of the sample are observed and unaffected by the study.
B. Observational Study. The members of the sample are observed and unaffected by the study.
C. Experiment, The members of the sample are affected by the study.
D. Survey. The members are asked questions.