One of the key questions for analyzing audience is: did the author choose a subject that is of interest of a particular group of people?
true or false? ?

The correct answer is true.

It is true that one of the key questions for analyzing audience is: Did the author choose a subject that is of interest of a particular group of people.

To create an interesting story, the author should know what appeals to its audience, what worries them, what excites them, what could move them to do something. It could be the environment, business, sports, recreation, or inspirational topics. So yes, the author needs to know who are going to be the recipients of your research to make a better impact.

from the political point of view it could be said that the candidate   is an effective speaker because she takes a strong position on the issue. it is an open discussion but probably she is making a presentation and can choose which subjects she wants to address. she is very likely to attain her aim which is to convince voters to accept her proposal.

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