The correct answer would be secure attachment. It is an attachment style that is characterized by children showing some distress or violent reaction when the one they are attached to are lost or away from them. They feel secure and protected when the things they are attached to are with them.
It is definitely not true that many small rural communities have best transport, so we can reject the option b) and d) together with it.
The best answer is that they don't have mass transit systems (a is the correct answer). It's not true that they can walk everywhere because they can for example be forced to walk to a different town if they need a hospital.
First thing that comes to mind is Russia had a strategic advantage to the Nazis. The Russian military knew the terrain (I believe it was mountainous) and the cold climate helped push back the Nazis. The Nazis actually tried to get into Russia. That was the only country I could think of.
Most countries, I think did not have the military power to stop Hitler/Nazis from invading them.
Hopefully this helps.
Answer:
[federal] U.S. District Court .
Explanation: