Collection of people at a time of a place if more than thirty then such size of collection of people considered as 'population'
Answer: A !
The answers A.
Because the passage isn't talking about poets in general, it's specifically talking about Paul Lawrence Dunbar. So the topic sentence should have him as the main theme.
An educated consumer is a buyer who takes time to learn before buying.
It is all about doing your research to ensure that the product you are buying is worth the price and more.