"Many people believe that when they get laid off from their job, they are alone, but many soon come to realize that this is a result of the current recession. They can connect their troubles to issues."

Private, public

Explanation:

They can connect their private troubles to public issues.

When many people are laid off from their job, they are alone and it become a private/personal troubles to them. But by the time they are able to understand the happening in their environment/surrounding; they realized that there is a public/external factor that contributed to their laying off.

In the aftermath of understanding the happenings in their surrounding, they are able to connect their private troubles to public issues.

answer: a. the kind of population living in your neighbourhood.

the census explorer data tool by the us census bureau allows the user to zoom in on any neighbourhood within the united states and find the kind of people residing in that by race and age.  

the tool needs to needs to be used twice – once in order to find what type of people reside in a neighbourhood, and then to see the age groups of the people in the same neighbourhood.