Answer:
D. Statistics about the number of people who live in poverty
Explanation:
The first and second choices are only about a singular person. Not that a single person can't make a difference, but if you want to change something, it's better to have more people involved.
The third option is a biased article, which means it's not the best to used. While the concept is there, it probably won't have any facts because it's biased.
The last option is the best choice because it's something that's true, it's not biased and it involves more than one person. It shows how many people are affected by poverty and why the government should do something about it.