PLEASE ANSWER ASAP

Determine whether the study depicts an observational study or an experiment. A survey is conducted asking 325 people, "Do you prefer tea A or tea El'?" Choose the correct description of the study. G) A. The study is an observational study because the researchers control one variable to determine the effect on the response variable. O B. The study is an experiment because the researchers control one variable to determine the effect on the response variable. O C. The study is an experiment because the study examines individuals in a sample, but does not try to influence the variable ofinterest. O D. The study is an observational study because the study examines individuals in a sample. but does not try to inuence the variable of interest