Ellen decides to study overweight celebrities. she designs her study as an in-depth investigation of the singer adele. she interviews and observes adele to see if there are differences in what she orders, how quickly she eats, and how much she eats. ellen's research design employs the method.

Ellen decides to study overweight celebrities. she designs her study as an in-depth investigation of the singer adele. she interviews and observes adele to see if there are differences in what she orders, how quickly she eats, and how much she eats. ellen's research design employs the case study method. A case study method allows a researcher to perform all needed tasks and procedures when researching a topic. Due to being able to perform a wide range of research, Ellen is able to examine the real life investigation with singer Adele. Ellen is able to better understand why there are many celebraties that become overweight once they become famous.

The correct answer is "c) beginning inventory for the first quarter"