The setting, The main character, The theme, The problem and solution. The begining, middle or end. And lastly the POV (point of view)
Personally, I would say D. 'All of the above' since they are all very reasonable answers. Hope that helps :)
<span>A) a study of local economics by an objective research company
It's important that whatever information is presented, that it is objected and unbiased. A third party research company that has no stake in the building would be the most unbiased company to do the research. Also, having an economic study would present the information in the most educational way. </span>