But there remain armed guards and checkpoints all the same—still a restriction on the right to travel, still an instrument to impose upon ordinary men and women the will of a totalitarian state.

Each of the following sources could help to achieve this purpose EXCEPT

a
a local newspaper article which interviews three families affected by the travel restrictions and highlights the negative impact on their daily lives

b
an excerpt from an article published in a peer-reviewed journal that analyzes how checkpoints and travel restrictions are enforced by various totalitarian states

c
a blog post on an international university's website which features extensive student interviews about places they would like to travel

d
a governmental database that features facts and statistics regarding mental health, unemployment, and crime rates in countries where people are not free to travel

e
a white paper from an international human rights organization that shows decreasing quality of health among citizens prohibited from traveling across checkpoints