Select any of the following scenarios where data should be colfected through an experiment and not an observational study. Answer 2 Points A) Your neighberhoods HOA wishes to determine the average number of children per household in the neighborhood. B) Sacha wishes to determine the average salary of high school teachers across her home state during their first year of teaching. C) An artist wishes to determine which detergent will best remove paint stains from their aprons. D) A pharmaceutical company wishes to determine if a new medication will be effective for treating inflammation