Answer:
A narrow topic will be difficult to find information and data about.
Explanation:
It might be stated that part 4 is included in order to provide a data-support information, that is to say, that this is not just an opinion but there have been researches on the matter, such as census and polls which might add validity to the statements. This is a way of showing that there is enough information to support the topic discussed.
Answer:
The question is asking for which poem you should use different voices to read them.
Explanation:
Not if you need to use a different voice for each poem, because you do. It's asking for which singular poem uses more than one voice to read.