Answer:
interviews with local realtors about the changes to neighborhoods near Denise’s school
a research article with data showing changes in the student population at Denise’s school
Explanation:
According to the given question, Denise is researching the impact of gentrification, an increase in middle-class and affluent homeowners, on the population of her high school.
Therefore, the TWO sources that would be most useful to her research are interviews with local realtors about the changes to neighborhoods near Denise’s school & a research article with data showing changes in the student population at Denise’s school.
This is because, to correctly find out the impact of gentrification and why there are more wealthy families in Denise's high school, she needs to consult these sources.
The answer is Ravensbruck
D is a chronological event. The War Memorial was created where, how and maybe why. The maybe why is only about why Washington was chosen.
B again is recounting exactly how the peace was brought about in korea in the 1950s. It's not a positional paper.
A is not a position although it could be made into one. This question is a bit ambiguous and you are forced to choose between A and C. I would pick C because it is a position. No matter what else is relayed, the thing you must determine is that the Dental Association has a position: prevention.
A cannot be so easily dealt with. The problem is that it has a position, but it looks like it does not have any kind of resolution. It's intent is to show that antibiotics have an effect on the food chain. If it said a "good" effect or a "bad" effect, it would be a shoo in.
Answer C <<<<< But don't be surprised if it is A nevertheless.