2. Which of the following is a good example of narrowing a topic by asking more targeted questions? A. When researching the population decline of polar bears you decide to research the size differences of the vanous species of bear
B. When researching the health effects of drinking soda you decide to research the effects of drinking only diet soda
C. When researching the average amount of television watched among 55-10 60-year-olds you search for the highest-rated shows on cable television
D. When researching the average household income of the United States you decide to look up the world average household income
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