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

C) When researching the health effects of drinking soda, you decide to research the effects of drinking only diet soda.

Explanation:

Narrowing a topic is a step towards a deep and detailed analysis of a certain topic. In this process, a topic is focused and narrowed so that it can be deeply explored in details. This helps in the researcher to move in a specific way of research and not deviate in the process. Developing research questions, avoid generalized topics and forming subtopics are some of the ways in which the narrowing of the topics are done.  

In the given sentence, the topic is narrowed by asking the targeted question and focusing only on the effects of diet soda.

faithful servants eumaeus and philaetius:

his ragged vest then drawn aside disclosed the sign conspicuous, and the scar exposed: eager they view'd, with joy they stood amazed with tearful eyes o'er all their master gazed:

these servants know ulysses by the scar he got when he was a child - so when he showed them the mark, they immediately knew this is truly their master and they hugged him, finally starting to believe his words.