Mulitple Choice Question   A researcher is investigating the quantity of water people drink each day.  A sample of randomly selected adults (N = 100,000) were asked to report (Yes or No) whether they drink at least 48 oz. of water each day, and 35% responded with a yes.   What scale of measurement is the data for the variable of interest? A. Nominal   B. Ordinal   C. Interval   D. Ratio